Question

The first two angles in a triangle are 90 degrees and 50 degrees. What does the third angle have to be?

A. 20 degrees
B. 40 degrees
C. 50 degrees
D. 90 degrees

Answer 1

Answer:

B: 40 degrees

Step-by-step explanation:

The area of a triangle is equal to 180 degrees. So subtract 90 degrees and 50 degrees from 180 degrees, so we are left with 40 degrees.