Question

Please help! I dont understand..

What is the area of a circle with diameter 8 inches?

4 pi in 2

8 pi in 2

16 pi in 2

64 pi in 2

Answer 1

In is inches

Answer 2

use the formula do you know ??

Answer 3

yeah i multiplied 8 x 3.14

Answer 4

formul is A= pi r square

Answer 5

\[A=\Pi r ^{2}\]

Answer 6

and 8 is diameter you need to divide 8 by 2

Answer 7

divide 8 by 2 to find radius

Answer 8

\[A=3.14(4)^{2}\]

Answer 9

\[A= \pi \times r^2\]
and
\[r= Diameter \div 2\]

Answer 10

@??Unknown?? Do you understand

Answer 11

8 divided by two is 4

Answer 12

don't use the pi because pi is already in choices so we don't need to use this

Answer 13

just square the radius that you find after dividing 8 by 2