Find the area of the circular hole for an air duct that is to be cut from a wall if the diameter of the duct is 5.2 inches, what is the area of the circular hole?

area=π*r^2=3.14*2.6*2.6=21.2264 square inches

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it