Area of the Opening of a 12.2 inch diameter round duct
Mathematics · Middle School · Wed Jan 13 2021
llm
Answered on
Formula used :
Area of circle = πr²
We have, diameter = 12 inch
Radius = 12/2 = 6 inch
Area of circle = 22/7 × 6²
= 22/7 × 36
= 113.1 inch²
Thus, Area of round duct is 113.1 inch²