AnswersISP ONLY CCSS Math 1 S2 M1900XXIntroduction to Transformations

Isosceles Triangles Answers

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Triangle XYZ is isosceles. The measure of the vertex angle, Y, is twice the measure of a base angle.What is true about triangle XYZ? Select three options.

Question illustration
A
Angle Y is a right angle.
B
The measure of angle Z is 45°.
C
The measure of angle X is 36°.
D
The measure of the vertex angle is 72°.
E
The perpendicular bisector of creates two smaller isosceles triangles.
Option E
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Triangle ABC is isosceles.

Question illustration
A
It is twice the measure of angle A.
B
It is twice the measure of angle C.
C
It is equal to the measure of angle A.
D
It is equal to the measure of angle C.
23

is a perpendicular bisector of .

Question illustration
A
It will be a right triangle.
B
It will be an acute triangle.
C
It will be an equilateral triangle.
D
It will be an isosceles triangle.
24

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

A
40°
B
70°
C
100°
D
140°

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