a solid is in the form of cylinder with hemispherical ends the total height of the solid is 20 centimetre and diameter of cylinder is 7 cm find the total volume of the solid (use π=22/7)
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Given,
•total height is solid =20 cm
•diameter of cylinder =7 cm
•radius of cylinder =7/2 =3.5 cm
•radius of cylinder = radius hemisphere
Solution,
=T.S.A of solid =T.S.A of cylinder + T.S.A of hemisphere
= 2πr(h+r) + 3πr^2
=2 * 22/7 * 7/2 (20+3.5) + 3 * 22/7 * 7/2 * 7/2
=22 * 23.5 + 3 * 11 * 7/2
=517 + 33 * 3.5
=517 + 115.5
=632.5
Answer = 632.5
•total height is solid =20 cm
•diameter of cylinder =7 cm
•radius of cylinder =7/2 =3.5 cm
•radius of cylinder = radius hemisphere
Solution,
=T.S.A of solid =T.S.A of cylinder + T.S.A of hemisphere
= 2πr(h+r) + 3πr^2
=2 * 22/7 * 7/2 (20+3.5) + 3 * 22/7 * 7/2 * 7/2
=22 * 23.5 + 3 * 11 * 7/2
=517 + 33 * 3.5
=517 + 115.5
=632.5
Answer = 632.5
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