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This is part of a project, Thanks!!
2007-10-02 10:18:49 · 6 answers · asked by Jeremiah Johnson 7 7 in Science & Mathematics ➔ Mathematics
I GUESS you mean the diameter is 36 inches, so it's radius is 18 inches.
Circumference = 2*Pi*r 0r
= 2 * Pi*18 or
= 36 Pi inches
half the circunference is then 18 Pi inches.
2007-10-02 10:22:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The distance across the widest point is the diameter. The circumference (the distance around the circle) is the formula Pi times the Diameter.
In this case 3.1416 (pi) times 36 = 113.0976
2007-10-02 10:27:16 · answer #2 · answered by Marvinator 7 · 0⤊ 0⤋
The circumference of a circle is 2(pi)r
Your radius is 18"
So the circumference is 36(pi)
2007-10-02 10:22:11 · answer #3 · answered by Troy G 2 · 1⤊ 0⤋
multiply it by pi
36 x 3.1415926.... = 113.1 inches
And if it's a circle, the width is always 36", it is no greater or lesser anywhere else. If it was, it would be an oval or an ellipse, not a circle.
2007-10-02 10:24:55 · answer #4 · answered by Eli 6 · 0⤊ 0⤋
36" wide = diameter
circumference = (pi)*diameter
2007-10-02 10:23:46 · answer #5 · answered by xandyone 5 · 0⤊ 0⤋
circumference of full circle is diameter * 3.14=113.04
perimeter of half moon is 113.04/2=56.52+36=92.52
2007-10-02 11:08:59 · answer #6 · answered by Airmech 5 · 0⤊ 0⤋