november 3, 2014 new seats!!. november 3, 2014 w arm -u p : a scale drawing of a rectangular rug has...
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![Page 1: November 3, 2014 NEW SEATS!!. November 3, 2014 W ARM -U P : A scale drawing of a rectangular rug has dimensions 8 inches by 5 inches. The length of the](https://reader034.vdocument.in/reader034/viewer/2022051516/56649cfd5503460f949cd699/html5/thumbnails/1.jpg)
November 3, 2014
NEW SEATS!!
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November 3, 2014
WARM-UP:A scale drawing of a rectangular rug has dimensions 8 inches by 5 inches. The length of the longer side of the actual rug is 24 feet. Calculate the area (in square feet) of the actual rug.5 in
8 in
HintFirst calculate the actual side lengths!
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Tonight’s Homework
None!
(but if you want more practice, you can work on any of the problems from this
PowerPoint that we did not get to today in class)
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Objective
WRITE THE OBJECTIVE IN YOUR OWN WORDS AT THE
TOP OF TODAY’S WORKSHEET
SWBAT (Students will be able to)…
solve real world problems for missing side lengths of triangles
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Finding Side Lengths In Similar Triangles
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Notesand
Practice
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Solve for the missing side length:
12 ft
15 ft
8 ft
x
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Solve for the missing side length:
12 ft
15 ft
8 ft
x
Step 1:Separate the triangles.
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Solve for the missing side length:
12 ft
15 ft
8 ft
x
Step 2:Identify corresponding sides.
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Solve for the missing side length:
12 ft
15 ft
8 ft
x
Step 3:Solve for the missing side length (like you know how to).
10 ft
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Solve for the missing side length:
12 cm
x
3 cm
4 cm
x =
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Solve for the missing side length:
12 ft
x
3 cm
4 cm
HINT
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Solve for the missing side length:
12 cm
x
3 cm
4 cm
x = 16 cm
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Solve for the missing side length:
x =
12 in
6 in
x
3 in
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Solve for the missing side length:
12 in
6 in
x
3 in
9 in
HINT6 in
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Solve for the missing side length:
x = 18 in
12 in
6 in
x
3 in
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Solve for the missing side length:
x
3 m
9 m
x =
5 m
15 m
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Real World
Problems
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Solve for the length of the shadow:
x = 2 ft
A 6-foot adult has a shadow 4 feet long. How long is the shadow of the 3 foot child standing next to the adult?
6 ft
4 ft x
3 ft
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Solve for the height of the tree:
x = 9 m
Tonya is 1.5 meters tall. She stands 10 meters in front of a tree and casts a shadow 2 meters long. How tall is the tree?
x
1.5 m
10m 2m
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70m
210m
25m
Solve for the depth of the submarine:
x = 100 m
After traveling 70m in its dive, a submarine reaches a depth of 25m. What will the submarine’s depth be if it continues for another 210 meters? Set up and solve a proportion to solve this?
x
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Solve for the height up the building:
x = 12.5 ft
The ladders shown below are standing against the wall at the same angle. How high up the wall does the longer ladder go?
*All units are in feet*
x
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Solve for the height of the building:
x = 40 m
x