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3 years ago

14

Min knows that Pi times r = 9.42 centimeters. What would she need to do to find the area?

1 answer:

VLD [36.1K]3 years ago

6 0

Answer:

She could divide 9.42 by Pi to find the radius, then multiply 9.42 by the radius.

(Last option)

Step-by-step explanation:

We need the formula for the area of a circle:

A = πr²

Remember r² = r × r

So you could rewrite the formula like this:

A = π × r × r

If π × r = 9.42, then the area becomes:

A = 9.42 × r

"<em>Then multiply 9.42 by the radius</em>".

To find "r", divide 9.42 by π.

π × r = 9.42

r = 9.42/π

"<em>Divide 9.42 by Pi to find the radius</em>".

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