kierraruddle9 kierraruddle9

24-05-2020
Mathematics

contestada

An equation is given.
A=4π r2
Solve the equation for r .

A) r=4πA2
B) r=A2π
C) r=A4π−−√
D) r=4πA−−√

Respuesta :

jimrgrant1 jimrgrant1

24-05-2020

Answer:

r = [tex]\sqrt{\frac{A}{4\pi } }[/tex]

Step-by-step explanation:

Given

A = 4πr² ( divide both sides by 4π )

[tex]\frac{A}{4\pi }[/tex] = r² ( take the square root of both sides )

[tex]\sqrt{\frac{A}{4\pi } }[/tex] = r

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