suppose the area of a circle is 31.4 units squared. about what is the length of the diameter

suppose the area of a circle is 31.4 units squared. about what is the length of the diameter
in Pre-Algebra Answers by
You probably have to provide the radius, first, in order to solve the math/geometry problem. For example: suppose a circle has an area of 98.5. What is the radius? The answer could be: Approximately equal to 5.6.
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1 Answer

Problem: suppose the area of a circle is 31.4 units squared. about what is the length of the diameter

pi * r^2 = A
3.14 * r^2 = 31.4
(3.14 * r^2) / 3.14 = 31.4 / 3.14
r^2 = 10
4 = sqrt(10)

Ignoring the negative value, r is
approximately 3.16 units.

(If you mean square units, not units squared.)
by Level 11 User (78.4k points)

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