Question

Find the number of coins 2 cm in diameter and 0.5 cm thick to be melted to form a right circular cylinder of height 10cm and radius 3.5 cm.​

Answer 1

Step-by-step explanation:

number of coins = x

then

x * volume of one coin = volume of cylinder

x * πr²h = πR²H

x * r²h=R²H

x * 1 * 0.5=3.5*3.5*10

x * 0.5=35*3.5

x = 35*7

x = 245