oldcoolschool oldcoolschool

09-11-2017
Mathematics

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The diameter of a circle is 22 feet. Using the formula A π= r^2, what is the area of the circle? Use 3.14 for pi.
____ft^2

The diameter of a circle is 22 feet Using the formula A π r2 what is the area of the circle Use 314 for pi ft2 class=

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helpmetnx helpmetnx

09-11-2017

The diameter is twice the radius. So to find the radius, r, divide the diameter by two
A = (3.14) r^2
A = (3.14) (11)^2
A = (3.14) (121)
A = 379.94
The area of the circle is 379.94 ft^2

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