chapter 7 review
DESCRIPTION
Chapter 7 Review. Question 1 - 10. Find Cos(42 o ) (round to the nearest four places). Answer 1 – 10. .7431. Question 1 - 20. Find angle A Cos(A)=1/2. Answer 1 – 20. 60 degrees. Question 1 - 30. Find angle A Tan(A)=1. Answer 1 – 30. 45 degrees. Question 1 - 40. Solve for X. X. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/1.jpg)
![Page 2: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/2.jpg)
Angles All about Sides
Special Triangles Trig Ratios Solving
Triangles
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
![Page 3: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/3.jpg)
Question 1 - 10
Find Cos(42o)
(round to the nearest four places)
![Page 4: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/4.jpg)
Answer 1 – 10
• .7431
![Page 5: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/5.jpg)
Question 1 - 20
Find angle ACos(A)=1/2
![Page 6: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/6.jpg)
Answer 1 – 20
60 degrees
![Page 7: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/7.jpg)
Question 1 - 30
Find angle ATan(A)=1
![Page 8: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/8.jpg)
Answer 1 – 30
45 degrees
![Page 9: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/9.jpg)
Question 1 - 40
Solve for XX
815
![Page 10: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/10.jpg)
Answer 1 – 40
58 degrees
![Page 11: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/11.jpg)
Question 1 - 50
Solve for X
X
55
89
![Page 12: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/12.jpg)
Answer 1 – 50
38 degrees
![Page 13: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/13.jpg)
Question 2 - 10
• Tell whether the number represent and acute obtuse, right or no triangle
2, 20, 22
![Page 14: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/14.jpg)
Answer 2 – 10
No triangle 2+20=22
![Page 15: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/15.jpg)
Question 2 - 20
• Tell whether the number represent and acute obtuse, right or no triangle
4, 11, 13
![Page 16: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/16.jpg)
Answer 2 – 20
Obtuse
![Page 17: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/17.jpg)
Question 2 - 30
• Solve for X• (round to 2 decimal places)
510
8
X
![Page 18: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/18.jpg)
Answer 2 – 30
Cos(51)=8/x8/Cos(51)= x
X=12.71
![Page 19: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/19.jpg)
Question 2 - 40
700
8
X
![Page 20: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/20.jpg)
Answer 2 – 40
•X = 21.98
![Page 21: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/21.jpg)
Question 2 - 50
Solve for x and Y
630
8
X
Y0
![Page 22: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/22.jpg)
Answer 2 – 50
•X=7.13• Y= 27 degrees
![Page 23: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/23.jpg)
Question 3 - 10
• Solve for X
450
8X
![Page 24: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/24.jpg)
Answer 3 – 10
X = 8√2
![Page 25: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/25.jpg)
Question 3 - 20• Solve for X
300
5
X
![Page 26: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/26.jpg)
Answer 3 – 20
X = 10
![Page 27: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/27.jpg)
Question 3 - 30
• Solve for X and Y300
X
Y6
![Page 28: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/28.jpg)
Answer 3 – 30
X = 2√3Y = 4√3
![Page 29: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/29.jpg)
Question 3 - 40
• Name the rules in a 45-45-90 when going from a leg to HYP and HYP to leg
![Page 30: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/30.jpg)
Answer 3 – 40
• Leg HYP = Leg * √2• HYP Leg = HYP / √2
![Page 31: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/31.jpg)
Question 3 - 50
• Name the Rules in a 30-60-90 when going from the Short Leg to the Long Leg and the HYP and also Back
![Page 32: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/32.jpg)
Answer 3 – 50
SL HYP = SL * 2HYP SL = HYP / 2
SL LL = SL * √3LL SL = LL / √3
![Page 33: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/33.jpg)
Question 4 - 10
• Find the Tangent ratio of the angle
8
157
![Page 34: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/34.jpg)
Answer 4 – 10
• Tan = 8/7
![Page 35: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/35.jpg)
Question 4 - 20
• Find the Cosine and Sine ratios of the angle
8
157
![Page 36: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/36.jpg)
Answer 4 – 20
Cos = 7/15Sin = 8/15
![Page 37: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/37.jpg)
Question 4 - 30
•Define all Trig Ratios
![Page 38: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/38.jpg)
Answer 4 – 30
•Sine = Opposite/Hyp•Cosine=Adjacent/Hyp•Tangent=Opposite/Hyp
![Page 39: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/39.jpg)
Question 4 - 40
• Solve• Lauren want to measure the height of a
building. She stands 150ft from the base of the building. She measure the angle of elevation from a point on the ground to the top of the building to be 500. Estimate the height of the building.
![Page 40: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/40.jpg)
Answer 4 – 40
Height = 178.76ft
![Page 41: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/41.jpg)
Question 4 - 50
A
7
18
• Find all three trig ratios of angle A
10
![Page 42: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/42.jpg)
Answer 4 – 50
• Sin(A)= 7/18• Cos(A)= 10/18 = 5/9• Tan(A)= 7/10
![Page 43: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/43.jpg)
Question 5 - 10
• The perimeter of a square is 24in. Find the length of the diagonal.
![Page 44: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/44.jpg)
Answer 5 – 10
•6√2in
![Page 45: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/45.jpg)
Question 5 - 20
• Solve for the missing angle (round to the nearst degree)
A
125
![Page 46: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/46.jpg)
Answer 5 – 20
• Angle A = 22.6 degrees
![Page 47: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/47.jpg)
Question 5 - 30
13
Y
• Solve the triangle
X
Y
10
Z
![Page 48: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/48.jpg)
Answer 5 – 30
• Z= 13• X= 67.38 degrees• Y=45.24 degrees
![Page 49: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/49.jpg)
Question 5 - 40
• Solve for all parts of the triangle
A
155
B
X
![Page 50: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/50.jpg)
Answer 5 – 40
• A= 70.53 degrees • B= 19.47 degrees • X=10√2
![Page 51: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/51.jpg)
Question 5 - 50
• Solve for all parts of the triangle. Round decimals to the nearest tenth.
15Y
250
X
![Page 52: Chapter 7 Review](https://reader036.vdocument.in/reader036/viewer/2022062517/56813514550346895d9c67ac/html5/thumbnails/52.jpg)
Answer 5 – 50
X =13.59Y = 6.34