Question

Amy is cutting a triangle shaped baseball pennant banner out of felt. She starts by cutting a base 6 inches long and

two angles that each measures 75º What will the third angle measure?
A)
20
B)
25
30
9 D)
50°

Answer 1

30 degrees.

Explanation:

A triangle has 180 degrees. The two base angles are 75 degrees each. The third angle is x

75 + 75 + x = 180 Combine like terms on the left

150 + x = 180 Subtract 150 from both sides.

-150 -150

x = 30

The third angle is 30 degrees.