Question

3. From a right cylindrical solid otra
12 cm, a right cone, half the height of the cylinder, is
removed. The base of the cone is on one of the plane
faces of the cylinder, their centres being the same if the
radius of the base of the cone is half of the radius of the
base of the cylinder, find
(a) the volume of the solid left, and
(b) the total surface area of the solid left.
4. The figure shows a solid obtained after removing two
hemispheres from a solid right cylinder whose area of
the base is 154 cm. If the height of the cylinder is 24
cm, find the volume of the solid.
5 solid right cylinder is 18 cm high and the radius of its baseis 7 cm. Two equal
drilled on the plane faces of the cylinder, the height of each one being on the
cylinder and the radius of the base of each cone being equal to the base of the land
(a) the volume of the remaining solid, and
(b) the total surface area of the remaining solid​

Answer 1

Answer:

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