The perimeter:

The length of the longer side:
Answer:
144°
Step-by-step explanation:
step 1
Find the measure of the central angle of the regular pentagon
Divide 360 degrees by 5 (the number of sides)

Let
c----> the center of the pentagon
we know that
m∠ECA=72°
m∠ACB=72°
therefore
m∠ECB=m∠ECA+m∠ACB
substitute the values
m∠ECB=72°+72°=144°
The measure of angle ECB is equal to the degrees that the pentagon rotate
Step-by-step explanation:
a) Distance between Aranville t o Bowtown = 24 miless
b) Bowtown and Dovebury are furthest apart.
c) Toatl distance = 20 + 37 = 57 miles
Triangle
Parallelogram
Square
Arrow