Complementary angle:either of two angles whose sum is 90°.
If one angle =x, then the other is:
2x + 5, but we have:
x + 2x + 5 =90
3x=85 divide both sides by 3
x=85/3
x=28 1/3 degrees-one of the angles.
(2 x 28 1/3) + 5
=61 2/3 degrees-the 2nd angle.
