Answer:
108º
Step-by-step explanation:
to find the sum of interior angles: ( n − 2 ) × 180 = x
x = 540º
n = # of interior angles
first, solve for n
(n - 2) • 180 = 540 distribute to 180 to (n - 2)
180n - 360 = 540 add 360 to both sides
180n = 900 divide both sides by 180
n = 5
to find measure of each angle:
540 ÷ 5 = 108º
Answer:
its a
Step-by-step explanation:
Area of trapezoid(A) =(1/2) (b1 + b2)*h
b1= x - shorter base
b2=2x - longer base
A=975 m²
h=50 m
975 =(1/2) (x + 2x)*50
975 = 25*3x
975 = 75x
x=975/75 = 13 m
x= b1 = 13 m
b2=13*2=26 m
b1=13 m,
b2 = 26 m,