Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this and **thousands** of other questions.

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

Join Brainly to access

this expert answer

SEE EXPERT ANSWER

To see the **expert** answer you'll need to create a **free** account at **Brainly**

|dw:1368065262840:dw|

what is the formula for area of a sphere?

v=4/3pir^3

it's A=4*Pi*r^2 but you want half
so
2pi r^2=A
solve for r :)

I think you should include the surface of the circular base, doesn't?

i get like 19.5

me to n the surface area they gave me is 243pi squared

then do i do SA=1/24pir^2

and v=1/2pi cubed

Did you remember the base in the surface area formula?

is it S=B+1/2Cl=pir squared+pirl

@ heather the volume of a hemisphere is
2/3 pi r^2

volume=253.5??

I mean the formulae

so is the volume 253.5??

me?

ya ig

I guess so

I got a very different number.

To radius I get 4.39
so when it get round off to 2 decimal its 4.40

This is the volume 356.19

@razor99 r=4.39? How?