# math

If the number of square inches in the area of a circle is equal to the number of inches in its circumference,the diameter of the circle is

a. 4 inches
b. 2 inches
c. 1 inches
d. pi inches
e. 2 pi inches

1. 0
2. 0
3. 29
1. A = C
pi*r^2 = pi*D
pi*r^2 = pi*2r
Divide both sides by pi*r
r = 2 Inches.
D = 2r = 2 * 2 = 4 Inches.

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2. 0
posted by Henry

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