Mathematics: Asphere has a surface area of 80 square feet. which choice is the closest to its radius? use 3.14 to approximate pi.

Asphere has a surface area of 80 square feet. which

Ответ:

tristanthecat

14.03.2022

2.524 ft
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The equation for the surface area of a sphere is $SA = 4 \pi r^2$ .
SA = surface area
r = radius

You're told that the surface area, SA = 80 square feet. Plug that into the equation and solve for r:
$80 = 4 \pi r^2\\
20 = (3.14) r^2\\
 r^2 = \frac{20}{3.14} \\
r = \sqrt{ \frac{20}{3.14}}\\
r \approx 2.524 \: ft$

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Ответ:

ellisc7044

10.07.2020

Mathematics

2.52 feet

Step-by-step explanation:

This is a imagine math answer answer

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Ответ:

kanerobertrosss2213

26.10.2020

Mathematics

You need to subtract 25 by 18

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Asphere has a surface area of 80 square feet. which choice is the closest to its radius? use 3.14 to approximate pi.

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