10-02-2017
Mathematics

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find the circumference and the area of a circle with diameter 7 ft

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trombonebookworm trombonebookworm

10-02-2017

Area formula: pi * radius * radius
Radius=1/2diameter=1/2(7)=3.5

3.5*3.5*pi=12.25pi square feet

Circumference formula: pi * diameter

7*pi=7pi feet

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