Question

designing a circular carpet for his living room.
He knows that half way across the carpet is 12 feet.
He wants to put a rope border around the outside of the carpet.
How many feet of rope would he have to order?
so I'm confused to as if i use 24 instead of 12 and do i divide or multiply that with what to find the outside?

Answer 1

diameter x pi?

Answer 2

The radius is 12 feet. So the diameter is 12*2 = 24 feet

The circumference is

C = pi*d ... where d is the diameter

which means

C = pi*d

C = pi*24

C = 24pi

C = 24(3.14159)

C = 75.39816


So he needs about 75.39816 feet of rope.

Answer 3

whao i was alot off thank you

Answer 4

You're welcome