Complementary means 90 degrees so 90-13=77 degrees
Hope u understand !!!
Answer:
1350π
should be your answer
Step-by-step explanation:
15 x 15 x π = 225π
225π x 6 = 1350π
The measures of the angles in a triangle add up to 180°.

The measures of the angles are 43°, 47° and 90°.
Answer:
I think its D but no hate if not.