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20 POINTS!!!!!

20. What is the exact volume of a cylinder whose diameter is 10 meters and whose height is 12 meters? Show your work.

21. What is the exact volume of a sphere whose diameter is 14 cm? Show your work.

Respuesta :

xmaalpa

Answer:

20.  300π m³

21.  457 1/3 π cm³

Step-by-step explanation:

20. r = 10 ÷ 2 = 5

V = 5² × 12 × π = 25 × 12π=300π m³

21. r = 14 ÷ 2 = 7

[tex]V = \frac{4}{3} \pi 7x^{3}[/tex]

V = 457 1/3 π cm³

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