Question

How many lead balls, each of radius 1cm can be made from a sphere of radius 8cm?

Answer 1

Answer:

Step-by-step explanation:

Area of big sphere/ area of one lead ball

4*π*8*8*8/4*π*1*1

4 and π get cancelled

8*8/1*1

64/1=64

We can make 64 balls

Answer 2

8 cm ball's tottal volume is 4/3*3.1416* (8)^3= 2144.67 squre cm

1cm ball's tottal volume is 4/3*3.1416* (1)^3= 4.1888

that means we can made 2144.67/4.1888= 512 balls