Question

Find the surface area of the sphere to the nearest square unit.


hold on, i have to draw it

Answer 1

\[\huge SA = 4\pi r^2\]
will that help?

Answer 2

just make sure ur using the radius not the diameter

Answer 3

no it doesn't help/: A. 13 in.2

B. 50 in.2

C. 6 in.2

D. 3 in.2

Answer 4

how do i find the answer

Answer 5

what is your radius in this problem? do you know?

Answer 6

2?

Answer 7

no. that is the diameter. to get the radius, divide that by 2

Answer 8

so 1?

Answer 9

right. so substitute that to the equation i gave you

Answer 10

i feel like an idiot, idk what to do

Answer 11

r = 1 right? because it's the radius`

Answer 12

yes

Answer 13

would it be 3 in^2

Answer 14

so replace r with 1 in the equation i wrote...what do you get?

Answer 15

13 in^2

Answer 16

?

Answer 17

will you elaborate how you got that?