If the radius of the circle is R. Find the area of the circle.
42 cm2
30 cm2
35 cm2
38.5 cm2
We are asked to find the area of the circle. The equation for the area of the circle, A = π×R2
= (227)×3.52
= 38.5 cm2
The area of the circle is 38.5 cm2.
The area in cm2 of a sector of a circle with radius 6 cm if angle of the sector is 60∘ is ___ cm2.
The area in cm2 of the shaded region if the radius of the smaller circles are 1 cm each is 6.28 cm2.