Question 1 Report
calculate the surface area of a sphere of radius 7cm [Take π = 22/7]
The surface area of a sphere can be calculated using the formula: Surface area = 4πr2 where r is the radius of the sphere. Substituting r=7cm and π = 22/7, we get: Surface area = 4 x (22/7) x 72 cm2 Surface area = 4 x (22/7) x 49 cm2 Surface area = 616 cm2 Therefore, the surface area of the sphere is 616cm2. So the answer is 616cm2.