How do you find the area of a circle with diameter 20in?

1 Answer
Apr 29, 2018

"area "=100pi~~314.2" in"^2" to 1 dec. place"area =100π314.2 in2 to 1 dec. place

Explanation:

"using the formula for area (A) of a circle"using the formula for area (A) of a circle

•color(white)(x)A=pir^2larrcolor(blue)"r is the radius"xA=πr2r is the radius

"here diameter "=20rArrr=20/2=10" in"here diameter =20r=202=10 in

rArrA=pixx10^2=100pi~~314.2A=π×102=100π314.2