Question

A solid cylinder of diameter 13 cm and height 15 cm is melted and recast into 12 toys

Answer 1

Answer:

Step-by-step explanation:

cylinder       cone              hemissphere

r=6              r=3                r=3

h=15           h=12-3=>9

volume of cylinder =[ volume of cone +volume of hemisphere]nos. of toys

=>πx36x15=2/3xπx27 + 1/3xπx9x9x n

=>πx36x15=1/3xπ[54+81]x n

=>36x15x3=135x n

=>12=n