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The cylinder below has a volume of 80 cm³. what is the value for r?​

The cylinder below has a volume of 80 cm³. what is the value for r?​-example-1
User Ajay Barot
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1 Answer

3 votes

Answer:

r= 7.09 cm (3s.f.)

Explanation:


\boxed{volume \: of \: cyinder = \pi {r}^(2)h }

Given: h= 5cm, volume= 80cm³

πr²(5)= 80

Divide both sides by 5π:


{r}^(2) = (80)/(5\pi)

Simplify:


{r}^(2) = 16\pi

Square root both sides:


r = √(16\pi)

r= 7.09 cm (3s.f.)

User Gandolfa
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