Question

a solid right circular cone of height 20 cm and base radius 15 cm is melted and recast into a small circular cone of equal sizes of height 5 cm and base 1.5 cm how many coins are made​

Answer 1

Answer:

the answer is 2 inches

Step-by-step explanation:

Answer 2

Ist cone,

height : 20 cm

radius : 15 cm

Therefore, Volume:

$1 \div 3 \times \pi {15}^{2} 20$

$= 1500\pi$

2nd Cone,

height: 5 cm

radius: 1.5 cm

Therefore, Volume:

$1 \div 3 \times \pi {1.5}^{2} \times 5$

$= 3.75\pi$

Therefore,

No. of cones made

$= 1500\pi \div 3.75 \pi\\ = 400 \: cones$