Question

∠5 ​ and​ ​ ∠6 ​ ​are complementary angles.

m∠5=13°

What is the measure of ​ ∠6 ​?

Answer 1

77 degrees

Explanation:

because complimentary mean 90 degrees

and is 5 was already 13 what is 90-13=?

=77

Check:

77+13=90

Answer 2

It’s 77, since complementary means when added, the two angles equal to 90°, just subtract the given angle from 90 and there you go!
Hope this helps