44
Step-by-step explanation:
a+4=48
a+4=48
a=48-4
a=44
Answer: 28 feet
Step-by-step explanation:
Diameter is radius times 2.
The answere should be 7.16
Two equals circles than you equals three
And the elcplanarion
There is a formula for Sum of interior angles of a polygon:

This figure has 7 sides, n = 7

Add up all the given angles,
Subtract from 900,
This will give you value of x.