Answer:
in every question you should subtract the given value by 180
A. 12pi meters.
Circumference = pi x diameter (pi x 12 = 12pi)
Diameter = 2 x radius (2 x 6 = 12)
:Two Angles are Supplementary when they add up to 180 degrees. Notice that together they make a straight angle.
and if that doesn't help
:There are in an angle of one fifth of the supplementary angle. Supplementary angle decides the angle to always be and the complementary angle is always (i.e., right angle)
