Charlotte has a trampoline in her backyard. The diameter of the trampoline is 14 feet. What method can Charlotte use to find the area of the trampoline?

A.
Multiply the diameter by
π
.

B.
Multiply the diameter by 2, ten multiply by
π
.

C.
Multiply the diameter by 2.

D.
Divide the diameter by 2, square your result, and then multiply by
π

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Ithink the answer is d.