Question

PLZ HELP. Find the exact area of the circle with the given diameter.

d = 12.6 cm

A.

39.69 cm2

B.

158.76 cm2

C.

158.76π cm2

D.

39.69π cm2

Answer 1

exact means that the answer should be left with pi as part of the answer...

so that eliminates A and B

so halve the diameter to get the radius

square that number

and write it as

\[....\pi ~~cm^2\]

Answer 2

So the answer is C @campbell_st ?

Answer 3

so what is the radius...?

Answer 4

the radius is 79.38

Answer 5

right?