If you read the question properly, you will see that the area will be 10 pi.
Using 3.14 as Pi the area of circle is: 78.5
pi*10*10 square inches
Area = pi * r² ; and Circumference = pi * 2 * r. So Area = pi * 10 = pi * r². Divide both sides by pi:r² = 10 --> r = √10Circumference = pi * 2 * √10
Using 3.14 as Pi the area of circle is: 314.0
Area = Pi*r2 = Pi*2.52 ≈19.63m2
Using 3.14 as Pi the area of circle is: 0
Area of the circle = pi*radius2 = pi*52
A 72 degree sector represents 72/360 = 1/5 of a circle. Area of whole circle = pi*r2 = 100*pi So area of 1/5 circle = 20*pi = 62.83 cm2 (approx).
12
Using 3.14 as Pi the area of circle is: 1256.0
Using 3.14 as Pi the area of circle is: 200.96
Using 3.14 as Pi the area of circle is: 28.259999999999998