What is a requirement of complementary angles plz need help ASAP!!?
A. Complementary angles must be adjacent
B. Complementary angles must be vertical
C. The measures of complementary angles must add up to 90°
D. The measures of complementary angles must add up to 180°

Requirement is that the measure of complementary angles must add up to 90°

Step-by-step explanation:

answer: 26

step-by-step explanation:

well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180