Isosceles Triangles

Question 1

What is true about QRT? Select two options.

Revolt · Accepted Answer

A: QRT = 90°; B: QRT = SRT

Question 2

Isosceles triangle ABC has a perimeter of 96 centimeters. The base of the triangle is and measures 24 centimeters.What is the measure of ?

Revolt · Accepted Answer

B: 36 cm

Question 3

The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

Revolt · Accepted Answer

B: 70°

Question 4

GJ bisects ∠FGH and is a perpendicular bisector of FH.

Revolt · Accepted Answer

D: It has exactly 3 congruent sides.

Question 5

In triangle FGH, is an angle bisector of and perpendicular to .

Revolt · Accepted Answer

C: 16

Question 6

Triangle ABC is isosceles.

Revolt · Accepted Answer

D: It is equal to the measure of angle C.

Question 7

Consider the diagram and proof by contradiction.Given: △ABC with AB ≅ AC

Revolt · Accepted Answer

B: ∠B ≅ ∠C

Question 8

What is always true about the angles of an isosceles triangle?

Revolt · Accepted Answer

B: At least two of the angles are congruent.

Question 9

is a perpendicular bisector of .

Revolt · Accepted Answer

D: It will be an isosceles triangle.

Question 10

Triangle ABC is isosceles.

Revolt · Accepted Answer

C: 40

Isosceles Triangles Answers