find the value of y

(a)  

When the measures of two angles add up to _______°, the angles are said to be supplementary. When the measures of two angles add to _______°, the angles are said to be complementary.

(a)  

Find the value of x

(a)  

1. Find the measure of each exterior angle in a regular 20-gon (icosagon)

(a)  

Find the measure of each interior angle in a regular 15-gon.

(a)  

find angle d

(a)  

find b

(a)  

find a and b

(a)  

find b

(a)