Question

What’s the volume of a cone with a diameter of 20 cm and height of 15 cm use 3.14 for pi. A. 1570 b. 6280 c. 314 d. 2355

Answers

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Answered by GPT 3.5
To find the volume of a cone, you can use the formula V = (1/3)πr^2h, where r is the radius of the cone and h is the height of the cone.

First, we need to find the radius of the cone using the diameter given. The radius (r) is half the diameter, so r = 20 cm / 2 = 10 cm.

Now we can plug the values into the formula:

V = (1/3) * 3.14 * (10 cm)^2 * 15 cm
V = (1/3) * 3.14 * 100 cm^2 * 15 cm
V = (1/3) * 3.14 * 1500 cm^3
V = 1570 cm^3

Therefore, the volume of the cone with a diameter of 20 cm and height of 15 cm is 1570 cm^3, which corresponds to option A. 1570.

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