what is the circumference of a circle with a radius of 8?

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2007-05-17 01:24:16 · 4 answers · asked by bekah_2009 2 in Science & Mathematics ➔ Mathematics

formula is diameter times pi; where diameter is twice the radius.

So, the circumference is 16 pi

2007-05-17 01:27:42 · answer #1 · answered by lune_ellise 3 · 0⤊ 0⤋

circumference = 2 * pi * radius. So 2 * 8 * pi = 16 * pi. Pi is approximately 3.14159.

2007-05-17 01:27:42 · answer #2 · answered by finance_coder 3 · 0⤊ 0⤋

circumference= 2(pi)r
= (2) (Pi)( 8)
=16(pi)

2007-05-17 01:28:00 · answer #3 · answered by angate 3 · 0⤊ 0⤋

multiply the radius by pi, then multiply that by 2.

2007-05-17 01:27:32 · answer #4 · answered by Ralfcoder 7 · 0⤊ 0⤋