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Paha777 [63]
3 years ago
7

If the area of a circle is 81π, then what is the diameter of the circle?​

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

18

Step-by-step explanation:

81π=πr^2

r= 9,-9

9+9=18

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grandymaker [24]

Answer:

The space that the package would occupy is 45\pi cubic feet.

Step-by-step explanation:

The space that the package occupies is the volume of the cylinder. The volume of an object is the 3 dimensional capacity of the object.

Volume of a cylinder = \pir^{2}h

where: r is the radius and h is the height of the cylinder.

Given that; h = 5 feet and r = 3 feet.

The required volume = \pi × (3)^{2} × 5

                                   = \pi  × 9 × 5

                                  = 45\pi cubic feet

The space that the package would occupy is 45\pi cubic feet.

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3 years ago
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Answer:

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Step-by-step explanation:

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puteri [66]
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7 0
1 year ago
Add 2.5 to the product of 4.2 and 0.2
Fudgin [204]

Answer:

3.34.

Step-by-step explanation:

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4 0
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Read 2 more answers
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Answer:

Step-by-step explanation:

180

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