The formula for the surface area of a hemisphere is = 2 2 , where r is the length of the radius. Find the surface area of a sphere with a radius of 21 feet. Use 22 7 .

lol we need to see what the question is asking about

step-by-step explanation:

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without