Question

You must determine the volume of air flowing through a duct. Begin by determining the area of the duct. (In a later step, you would multiply that value by the speed of
the air flowing through the duct to determine air volume.) The diameter of the round air duct is 16 inches. What is the area of its circular opening to the nearest whole
number?
The area of the circular opening is 16 square inches.

Answer 1

Answer:

4 i think

Step-by-step explanation:

Answer 2

The area of the circular opening is  201.14 sq.inches.

What is Area ?

Area is the space occupied by any given surface in a two dimensional plane.

A circular duct has a diameter of 16 inches

Area of the circular opening is given by

πd²/4

d is the diameter of the circle

= (22/7) * (16)²/4

= 201.14 sq.inches

Therefore the area of the circular opening is  201.14 sq.inches.

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