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A circular fountain has a radius of 9.4 feet. find its diameter and circumference to the nearest tenth.

A circular fountain has a radius of 9.4 feet. find its diameter and circumference to the nearest tenth.
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a circular fountain has a radius of 9.4 feet. find its diameter and circumference to the nearest tenth.

User Jeramiah Harland
by
8.8k points

2 Answers

4 votes
Diameter is 2r, or 18.8 ft

Circumference is 2*pi*r, or 59.1 ft
User Uwolfer
by
8.6k points
1 vote
diameter is just twice the radius and circumference is 2
\pir or
\pid
C = 2
\pir
C = 2
\pi(9.4)
C = 18.8
\pi
C = 59.1
D = 18.8ft

C = 59 if you use 3.14 instead of pi
User Diego Melo
by
7.9k points
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