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

User Koger
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2 Answers

5 votes
diameter = radius * 2
9.4 * 2 = 18.8
diameter is 18.8 feet
circumference =
\pi * diameter
c = 3.14 * 18.8
c = 59.032
circumference is 59 feet.
User Atomice
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7.8k points
2 votes

Answer:

18.8 feet, 59.1 feet to the nearest tenth

Explanation:

The diameter is the line drawn that divides the circle into two while the circumference is the perimeter of the circle. Both are a measure of the radius of the circle.

The diameter D = 2r where r is the radius of the circle

The circumference = 2Πr = ΠD where Π = 22/7

Given that the circular fountain has a radius of 9.4 feet

Its diameter = 2 × 9.4 feet = 18.8 feet

The circumference = 22/7 × 18.8 feet

=59.09 feet

≈ 59.1 feet to the nearest tenth

User IronBlossom
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8.0k points