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snow_tiger [21]
3 years ago
13

Calculate the area of the given circle.

Mathematics
1 answer:
kirill [66]3 years ago
8 0

Answer:

63.59 (c)

Step-by-step explanation:

Formula: πr^{2}

Plug in data:

9cm is diameter and a radius is half a diameter so the radius is 4.5cm.

π x 4.5^2 = 63.59cm^2

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The diameter of a circle is 12 mm. what is its radius?
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Answer:

6mm

Step-by-step explanation:

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leontyne sings for $1,000 an hour. Her rate increases by 50 percent after midnight. If she sings one night from 8:30 pm until 1:
iren2701 [21]
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4 years ago
Kelvin claims that a pol yhedron can have 30 edges , 18 faces and 12 vertices . Do you agree with him ? Explain your answer .
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5 0
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Step-by-step explanation:

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