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6. The diameter of a circle is 9 feet. What is the measure of its circumference? Round to the nearest tenth. A. 28.3 ft B. 63.6 ft C. 4.5 ft D. 14.1 ft
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6. The diameter of a circle is 9 feet. What is the measure of its circumference? Round to the nearest tenth.

A. 28.3 ft

B. 63.6 ft

C. 4.5 ft

D. 14.1 ft

User Kovpaev Alexey
by
7.6k points

1 Answer

13 votes

Answer:

A.


C= 28.3 \ \ feet

Explanation:

Formula for Circumference is


C=2\pi r

We know radius is half of diameter


r=(d)/(2) \\r=(9)/(2)


C=2(3.14)(9)/(2)


C=(3.14)9\\C=28.3 feet

User Tobloef
by
8.1k points
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