a cone of height 15 cm and base diameter 30 cm is carried out of a woo

1.	a cone of height 15 cm and base diameter 30 cm is carried out of a wooden sphere of radius 15 m the percentage of wasted wood is
Answer» Volume of cone = 1/3 × π(15)^2×15=1/3π(15)^3 Volume of sphere = 4/3 π(15)^3 Required percentage = volumeofcone/volumeofsphere×100 = volumeofcone/volumeofsphere×100 = 1/3 × π × (15)^3/4/3 ×π(15)^3 × 100 = 1/4 × 100 = 25%

a cone of height 15 cm and base diameter 30 cm is carried out of a wooden sphere of radius 15 m the percentage of wasted wood is

Answer»

Volume of cone = 1/3 × π(15)^2×15=1/3π(15)^3

Volume of sphere = 4/3 π(15)^3

Required percentage = volumeofcone/volumeofsphere×100 = volumeofcone/volumeofsphere×100

= 1/3 × π × (15)^3/4/3 ×π(15)^3 × 100

= 1/4 × 100

= 25%