A solid is in form of a cylinder with hemispherical ends. The total height of solid is 20 and diameter of cylinder is 7 cm. Find the total volume of solid
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Answered by
10
Height is 20 cm
Diameter is 7cm so radius 7/2=3.5cm
Volume of cylinder =pie × r^2 × h
Pie= 3.14
Volume = 3.14 × 3.5 × 3.5 × 20= 770 cm^3
rimjhim27ts:
The answer is wrong
Sorry for the incomplete answer. Answer =total volume =volume of cylinder + volume of two hemisphere at its end....volume of cylinder is 770cm^3 now for the volume of hemisphere is 2/3 pie*r*r*r. So volume of hemisphere is 2/3*3.14*3.5*3.5*3.5 = 89.8333333333...as there are are two hemishperes so volume of hemisphere is 179.6666666667..thus total volume of solid =volume of cylinder +volume of two hemisphere i.e949.66666666667cm3
U hv to take the height of cylinder as 13
Answered by
3
Length of solid =20
Height of cylinder = 20-3.5*2=13cm
Vol of solid = 3.14 *3.5*3.5[13+4/3*7/2]
The answer will be 680.16
This answer is also wrong
680 .16 is right answer wether 949.66 is a wrong answer
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