Question

Gaelic football is played with a ball with a radius of 5 inches. What is the surface area of the ball used in Gaelic football? (Use 3.14 for π.)

157 in.2
125.6 in.2
251.2 in.2
314 in.2

Answer 1

Surface area of a sphere is \[SA = 4\pi r^2\]

Answer 2

B? @whpalmer4

Answer 3

how did u get b?

Answer 4

If \[4*3.14*5*5 = 125.6\]then B is correct. I think @Zale101 and I are a bit skeptical of your arithmetic, however...

Answer 5

4X4=8X5=40X3.14=125.6

Answer 6

say what? how do you figure that 4x4 = 8x5?

Answer 7

oh I mean 5

Answer 8

let's work through it step by step. what is 5*5?

Answer 9

25

Answer 10

what is 4*25?

Answer 11

100

Answer 12

what is 3.14*100

Answer 13

314

Answer 14

are you still liking B as your answer? :-)

Answer 15

nope

Answer 16

good. I hope you don't like A or C, either!

Answer 17

lol

Answer 18

any questions?