Question

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

Answer 1

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

Explanation:

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

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

`"here diameter "=20rArrr=20/2=10" in"`

`rArrA=pixx10^2=100pi~~314.2`