Ask your own question, for FREE!
Mathematics 14 Online
new2luv:

help

new2luv:

number 2 @az

AZ:

\(\text{surface area of sphere} = 4 \pi r^2\) \(\text{volume of sphere} = \dfrac{4}{3} \pi r^3\) just plug in whatever r (or radius) value they gave you and solve

new2luv:

5 * 5 *5

AZ:

so for #2 we have r = 5 so for the surface area SA = 4 * pi * 5^2 SA = ?? remember to not multiply the pi because we want to keep it in terms of pi

new2luv:

5*5

new2luv:

@az

AZ:

what is 5 * 5 and then multiply it by 4

new2luv:

100

AZ:

Good so we went from SA = 4 * pi * 5^2 SA = 4 * pi * 25 SA = 100 * pi SA = \( 100 \pi\) just remember not to forget the pi

AZ:

now for volume volume = 4/3 * pi * (5)^3 what is 5 * 5 * 5 = and then multiply by 4/3

new2luv:

ok I got that

AZ:

what do you get

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!