2 years ago

The radius of a circle is 9 miles. What is the circle's circumference?

Mathematics

2 answers:

dlinn [17]2 years ago

8 0

Answer: 56.548

Step-by-step explanation: Circumfrance = (radius x pi) x2

BARSIC [14]2 years ago

5 0

Answer:

The answer is 56.57miles

Step-by-step explanation:

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A cone has a volume of 942 in.³ and a height of 9 inches what is the radius of the cone use 3.14 for pie

bija089 [108]

Answer:

r = 51.96 inches

Step-by-step explanation:

$V_{cone} = \pi {r}^{2} h \\ \\ \implies \: r^{2} = \frac{V_{cone}}{\pi h } \\ \\ \implies \: r^{2} = \frac{942}{3.14 {(9) } }\\ \\ \implies \: r^{2} = \frac{942}{3.14 {(9) } } \\ \\ \implies \: r^{2} =2700 \\ \\ \implies \: r= \sqrt{2700} \\ \\ \implies \: r=51.96 \: inches$