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Olegator [25]
3 years ago
13

PLEASE HELP ASAP!! EXPLANATION = BRAINLIEST! THANK YOU SO SO MUCH

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

See below.

Step-by-step explanation:

As the diameter is 5 inches, the radius “r” is 5/2 = 2.5 inches.

We calculate the volume of a sphere as follows: V = 4/3 \pi r^3

As we have to use 3.14 for pi, we’ll use that instead of “true” pi.

The formula becomes:

V = 4/3*3.14*2.5^3 = 65.42

The volume of the sphere is 65.42 cubic inches.

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sdas [7]

Answer:

Semicircle = \frac{\pi x d }{2} + d

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∴ the perimeter is 14 + 32 + 51.4

∴ The perimeter is 97.4 cm

Area 1 = \pi r^{2}

Area 1 = 20 ÷ 2 = 10

Area 1 = \pi 10^{2}

Area 1 = 314.2

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Area = Area 1 + Area 2

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Step-by-step explanation:

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luda_lava [24]

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