Question

1.
What is the area of a circle with a diameter of 8? (1 point)

4pi symbol
8pi symbol
16pi symbol
64pi symbol

Answer 1

area of a circle is given by
\[=\pi r^{2}\]

Answer 2

The equation is pir^2 and r=.5d

Answer 3

where r is radius

Answer 4

So you could also rewrite it as "pi"(.5d)^2

Answer 5

so first convert the diameter into radius and put it into that formula

Answer 6

^ :D

Answer 7

it's always funny to watch two users race with two different solutions. usually confuses askers...but still funny

Answer 8

lol^(:

Answer 9

Ahaha sorry I wasn't really looking while I was typing xD Good race though ;D

Answer 10

aha itz ok thanx everyone!(:

Answer 11

sooooo what is the answer lol???

Answer 12

r=d/2
r=8/2=4

so area=pi(4)^2

Answer 13

kk thanx!(: