Question

2 2. 6. Diameter of a globe is 14 cm, then its curved surface area is :- (a) 616 cm (b) 400 cm? (c) 144 cm? (d) 100 cm ​

Answer 1

Answer: 616cm²

Globe is a sphere. So we need to find the curved surface area of a sphere. The formula we need for this is 4πr²

Diameter = 14cm

Radius = 7cm

Curved Surface Area (C.S.A) of globe = 4πr²

                                                              = 4 π 7²

                                                              = 4 ˣ 22/7 ˣ 49

                                                              = 4 ˣ 22 ˣ 7

                                                              = 616 cm²