Practicing Success
What is the surface area of a sphere whose diameter is 30 cm? [Use π = 3.14.] |
1134 2826 1413 1130 |
2826 |
We know that, Surface area of a sphere = 4πr2 Diameter = 30 then, Radius = 15 Surface area of the sphere = 4 × 3.14 × (15)2 = 2826cm2 |