Question

What is the measure of X, in degrees?

A. 40°

B. Cannot be determined

C. 20°

D. 70°

Answer 1

A. 40°

Explanation:

∠Z=∠Y (base ∠ of isosΔ)

= 60°

∠X=180-60-60(∠ sum of Δ)

=40°

Answer 2

A

Explanation:

z = y Both are opposite equal sides

z = 70 From the first statement.

y = 70 Given

x = 180 - z - y A triangle has 180 degrees

x = 180 - 70 - 70

x = 40