a cylindrical petrol tank has diameter of base 21 cm and length 18 cm It is fitted with conical and speech of axial length 9 CM that determine the capacity of the tank
Answers
Answered by
19
Volume of the cylindrical portion of the tank= TTr2h
=22/7 * (21/2)2 * 18cm3 = 174636/ 28 cm3
= 6237cm3
Volume of 2 conical ends
=2 (1/3 TTr2h) =2/3 TTr2h =2/3 * 22/7 * (21/2)2 * 9cm3
=174636 / 84 cm3 =2079cm3
Therefore, capacity of the tank= 6237cm3 + 2079cm3= 8316cm3
Thus, capacity of the tank= 8316cm3
=22/7 * (21/2)2 * 18cm3 = 174636/ 28 cm3
= 6237cm3
Volume of 2 conical ends
=2 (1/3 TTr2h) =2/3 TTr2h =2/3 * 22/7 * (21/2)2 * 9cm3
=174636 / 84 cm3 =2079cm3
Therefore, capacity of the tank= 6237cm3 + 2079cm3= 8316cm3
Thus, capacity of the tank= 8316cm3
Similar questions