Question

find the number of plates 1.5 CM in diameter and 0.2 CM thick that can be fitted completely inside a right circle of height 10 cm and diameter 4.5 CM ​

Answer 1

Answer:

Explanation:

let the number of plates be 'n'

then,

the volume of n number of plates=volumes of the right circular cylinder

pi x 0.2/2 x 0.2/2 x 1.5 x n = pi x 4.5/2 x 4.5/2 x 10

n = 4.5 x 4.5 x 10 x 2 x 2 /2 x 2 x 0.2 x 0.2 x 1.5

on solving,

n = 3375

number of plates is 3375