Jeopardy!

VocabularyTruths about

TrianglesMidsegments Inequalities Relationships in

Triangles Math fun!

100 100 100 100 100 100

200 200 200 200 200 200

300 300 300 300 300 300

400 400 400 400 400 400

500 500 500 500 500 500

Vocabulary 100

• A segment whose endpoints are at the vertex of a triangle and the midpoint of the side opposite is a…

Vocabulary 200

77 47• A perpendicular segment

from a vertex to the line containing the side opposite the vertex is called a(n)…

• A point where three lines intersects is called a(n)…

Vocabulary 300

Vocabulary 400

• The point of concurrency of the angle bisectors of a triangle is called the…

Vocabulary 500

• The point of concurrency of the altitudes of a triangle is called the…

Truths about Triangles 100

• The largest angle of a triangle is across from the _________ side.

Truths about Triangles 200

• Given points A(1, 3) B(5, 1) and C(4, 4) does point C lie on the perpendicular bisector of segment AB?

Truths about Triangles 300

• The vertices of a triangle lie at (0, 4) (0, 0) and (-4, 0). Find the center of a circle that would be circumscribed about this triangle.

Truths about Triangles 400

• Given A(0,6) B(0,0) and C(5,0), find the coordinates of the midsegment that is parallel to BC.

Truths about Triangles 500

• P(2, 1), Q(-1, 5), and R(-2, -2) are vertices of triangle PQR.

• A.) What are the coordinates of T if is a median of is a median?

• B.) What is the slope of if is the altitude from P?

• C.) Tell why or why not is a perpendicular bisector.

QT

PA PA

PA

Midsegments 100

• Find the value of x.

x

18

Midsegments 200

• Find the value of x.

5x

60

Midsegments 300

• Find the lengths of AB, BC and AC.

C

BA

7 7

6

6

5

5

Midsegments 400

• Find the value of x and y.

Drawing not to scale.

y

x

2x + 1

3x - 6

Midsegments 500

• Marita is designing a kite. The kites diagonals are to measure 64 cm and 90 cm. She will use ribbon to connect the midpoints of its sides that form a pretty rectangle inside the kite. How much ribbon will Marita need to make the rectangle connecting the midpoints?

3

63

63

6

Inequalities 100

• If a = b + c and c > 0, then a > b is which property of inequality?

Inequalities 200

• Two sides of a triangle have measure of 12 meters and 22 meters what are the possible measures of the 3rd side?

Inequalities 300

• Can a triangle have lengths of 2 yds, 9 yds, and 15 yds?

Inequalities 400

• If KL = x – 4 , LM = x + 4 and KM = 2x – 1, and the perimeter of the triangle is 27, find the order of the angles from smallest to largest.

Inequalities 500

• State the Exterior Angle Inequality Theorem.

Relationships in Triangles 100

• If a point lies on the perpendicular bisector of a segment, what holds true about its distance from the endpoints of the segment?

Relationships in Triangles 200

• Solve for x.

2x - 7

x + 5

Relationships in Triangles 300

• Point C is the centroid of triangle DEF. If GF, G being the midpoint of segment DE, is 9 meters long, what is the length of CF?

Relationships in Triangles 400

• Find the slope of the altitude drawn from vertex A.

(20, 0)

(4, 8)

(0, 0)C

B

A

Relationships in Triangles 500

• Find the equation of the line that is the perpendicular bisector of segment CA.

(0, 25)

(3, 16)

(0, 0)T

C

A

Math Fun! 100

• The next three terms in the sequence:

1, 1, 2, 3, 5, 8, …

Math Fun! 200

• The point where the two equations

y = 2x – 2 and

7x – 3y = 11 intersect.

Math Fun! 300

• Write the contrapositive for the statement “If my attitude in geometry is good, then I will have fun.”

Math Fun! 400

36,222 x 2 =? (Without using a

calc.)

Math Fun! 500

• What is Mrs. Geltner’s maiden name?