Question

Find the weight of an iron cylinder of height 20 cm and radius of the base 10 cm,
if 1 cm' of iron weigh 8 g.
do it fast please ​

Answer 1

Answer:

20cm = 8/20 height

10 cm = 10/20 radius

2*22/7*10/20*10/20+8/20

2*22/7*1/2*18/20

2.8285 answer