Question

Find the length of the diameter of a sphere with a surface area of 804.25. help please in solving it

Answer 1

do you know the formula for the surface area of a sphere?

Answer 2

4 pi r squared

Answer 3

good... A = (4pi)r^2

dividing (4pi) from both sides we have:
A/(4pi) = r^2

still with me?

Answer 4

yes

Answer 5

do u still need help

Answer 6

yes please nali

Answer 7

i cant seem to get the answer

Answer 8

wait.. we're not done..

Answer 9

A/(4pi) = r^2

take the square root of both sides we get:
sqrt(A/(4pi)) = r

that expression is the radius... do you know how to get the diameter?

Answer 10

the diameter is twice the radius right?

Answer 11

correct

Answer 12

what did you get?