Question

Leave answer in exact form unless otherwise indicated.

Find the exact circumference of a circle with diameter equal to 8 ft.

Answer 1

C = (pi)d
Substitute 8 ft for d in the formula.

Answer 2

never mind got it

Answer 3

ok

Answer 4

ok, I can't figure it out. either im missing a step or somthing. I do 8*3.14*2 right?

Answer 5

@mathstudent55

Answer 6

The exact answer means you leave pi as pi and just show the answer in terms of pi.
Since the formula is C = (pi)d, and d = 8 ft,
C = (pi) * 8 ft = 8(pi) ft

Answer 7

Using pi = 3.14 is an approximation. Since the problem asks for an exact answer, you must include pi in the answer.

Answer 8

25.12? so just 8 times 3.14?