A circle has an area of 78.5 square inches. What is the diameter of the circle?

Mathematics

2 answers:

Reptile [31]4 years ago

8 0

The diameter is 10 square inches

qaws [65]4 years ago

8 0

The formula for the area of a circle is the following:

$A = \pi r^{2}$

where $A$ is the area and $r$ is the radius of the circle. We also know that the diameter of a circle is twice the length of the radius, so you are able to determine the radius using the above formula, and then you can double it to get the diameter.

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Answer:

B. graph B

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The graphs of A,B,C and D are attached below.

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a_sh-v [17]

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