Answer:
9) m<1 = 73
10)
m<U = x = 60
m<S = x = 60
m<E = 2x = 120
m<D = 2x = 120
Step-by-step explanation:
9)
Sum of interior angles in a polygon with n sides
(n-2) * 180
Given polygon is 6-sided (n=6) so sum of interior angles is (6-2) * 180 = 720
Add all given angles then subtract from 720 to get m<1 = 73
10)
Sum of interior angles in a polygon with n sides
(n-2) * 180
Given polygon is 4-sided (n=4) so sum of interior angles is (4-2) * 180 = 360
Add all given angles
X + x + 2x + 2x = 360
6x = 360
X = 60
Replace x to find measure of angles
m<U = x = 60
m<S = x = 60
m<E = 2x = 120
m<D = 2x = 120
