Isosceles Triangles

Question 1

Triangle ABC is isosceles.

Revolt · Accepted Answer

It is equal to the measure of angle C.

Question 2

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

Revolt · Accepted Answer

70°

Question 3

Triangle ABC is isosceles.

Revolt · Accepted Answer

40

Question 4

Triangle ABC is shown below.

Revolt · Accepted Answer

14

Question 5

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

Revolt · Accepted Answer

At least two of the angles are congruent.

Question 6

What is true about QRT? Select two options.

Question 7

Triangle ABC is an isosceles right triangle. What is the measure of one base angle?

Revolt · Accepted Answer

45º

Question 8

Triangle KNM is isosceles, where angle N is the vertex.

Revolt · Accepted Answer

25º

Question 9

Angle M has a measure of 47°.

Revolt · Accepted Answer

43°

Question 10

Right triangle ABC is isosceles and point M is the midpoint of the hypotenuse.

Revolt · Accepted Answer

It is an isosceles right triangle.

Isosceles Triangles Answers