Answer:
45°
Step-by-step explanation:
The base angle are the same measure and since one angle is already 90° the remaining two are 45°. They have to equal up to 180. 90 + 45 + 45 = 180.
Hope this helps ya!!
The answer is c definitely
A. 2/5
B.2/5
C. 3/5
D. 5/5=1
