A solid cone of height 9 cm with diameter of its base 18 cm is cut out from a wooden solid sphere of radius 9 cm. The percentage of wood wasted is
Answers
Answered by
0
Volume of sphere = 4/3πr³ = 4/3 × 9³ × 22/7= 3055 cm³ (approx.)
Volume of cone= πr²h/3 = 22/7 × 9² × 9/3 = 764 cm³ (approx.)
∴Wastage = 3055 - 764 = 2291 cm³
% of wastage = 2291/3055 × 100= 75% (approx.)
Volume of cone= πr²h/3 = 22/7 × 9² × 9/3 = 764 cm³ (approx.)
∴Wastage = 3055 - 764 = 2291 cm³
% of wastage = 2291/3055 × 100= 75% (approx.)
Similar questions