Circumference+and+Area

Definition / Summary / How To / Steps circumfrence: the outside of a circle multiplied by 3.14 or pi

Easy Problems Area of a circle with the radius of 1 = 1 pi The diameter is 26 what is the radius? answer is 13

Medium Problems:

Find the circumference with a radius of 5 inches. answer- 31.4

====** Formulas Circumference **2pi * r= =Area= pi * r2

Easy Problems Radius = 10 Circumference= 20 (10*2) Area = 100 (10*10)

Medium Problems Radius= 50 Circumference= 100 (50*2) Area= 2,500 (50*50)

Hard Problems Radius= 132 Circumference= 264 (132*2) Area= 17,424 (132*132)

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