Question

a hemisphere has a radius of 17 what is the surface area

Answer 1

Surface area of a sphere = 4pi r^2
Plug in 17 in place of r and then divide the answer by 2 because it is a hemisphere.

Answer 2

what is it i wanna see if my techer marked wroing

Answer 3

What did you get?

Answer 4

A=4*pi*r^2

A/2=2*pi*r^2=2*3.14*17*17=1816 plus pi*r^2

Answer 5

i got 1816

Answer 6

Yep. If you round it. actually I got 1815.84

Answer 7

908+1816=2724

Answer 8

Did you perhaps omit the units?

Answer 9

how?

Answer 10

Why are you adding cinar?

Answer 11

i forgot the bottom surface

Answer 12

cut a watermelon two pieces think about red area not only green area

Answer 13

ahhhhhhhhhhhhhhhhhhhhhh

Answer 14

thx

Answer 15

yw