Question

Please help me! geometry help needed.

Answer 1

Answer: Choice D

181 grams

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Step-by-step explanation:

First we need to find the volume of the tennis ball

Since the diameter is d = 6 cm, it divides in half to a radius of r = 3 cm.

`V = \text{volume of a sphere}\\\\V = (4)/(3)\pi*r^3\\\\V \approx (4)/(3)*3.14*3^3\\\\V \approx 113.04 \ \text{ cm}^3\\\\`

This leads to

`\text{density} = \frac{\text{mass}}{\text{volume}}\\\\D = (M)/(V)\\\\M = D*V\\\\M \approx 1.6*113.04\\\\M \approx 180.864\\\\M \approx 181 \text{ grams}\\\\`