Question

find the surface area and the volume of a beach ball shown in the figure with diameter of 42 cm
as shown in the figure, a cylindrical glass contains water. A metal sphere of diameter 2cm is immersed in it. Find the volume of the water height of cylinder is 30cm and the radius is 7cm.

Answer 1

answer of beach ball question :

for a beach ball,
height =diameter =42
so ,radius will  be half of it=21 cm
∴r=21 cm
now,
let us consider π=3.14
so now ,
volume of the beach ball=4/3 π r³
                                       =4/3*3.14*21³
                                       =now,
                                       =4*3.14*3087
                                       =38772.72 cm³
so now,
surface area of beach ball=4 π r²
                                         =4 * 3.14 *441
                                         =4 * 1384.74
                                         =5538.96 cm²

ans : The volume of the beach  ball is 38772.72 cm³ and ,surface area of beach ball is 5538.96 cm²

Answer 2

Answer:

here is your answer please check and tell me it's correct or not