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What is the area that the icing will cover if someones adds icings to all 20 cookies in the case below?

What is the area that the icing will cover if someones adds icings to all 20 cookies in the case below?

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Reference: Pam's mom is fixing cookies for her class. She wants to put icing on the cookies. The radius of the cookies is 2 inches. She is making 20 cookies.

A. 251.2 inches squared
B. 125.6 inches squared
C. 12.56 inches squared

This question is part of Area of a Circle
Asked by Dayal, Last updated: Nov 05, 2019

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2 Answers

j.Barbara

J.Barbara

Answered on Mar 07, 2018

To find the area that Pam’s mom is going to put the icing on, we have to compute for the area of one cookie and then multiply the answer by 20 because she has to put the icing on all 20 cookies.
To compute for the area of one cookie, we have to use the formula Area= pi x (radius of the cookie x radius of the cookie).
Pi=3.1416
Radius of the cookie= 2 inches
Area = 3.1416 x (2x2)
Area= 3.1416 x 4
Area of a single cookie= 12.56 inches squared

To compute for the entire area that Pam’s mom is going to put the icing on, we multiply the area of a single cookie by the number of cookies that Pam’s mom is going to put the icing on. Thus:
12.56 inches squared x 20 cookies = 251.2 inches squared

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John Smith

John Smith

Answered on Apr 28, 2017

251.2 inches squared
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