The total surface area of a hemispher...

The total surface area of a hemisphere of radius `r` is `pir^2` (b) `2pir^2` (c) `3pir^2` (d) `4pir^2`

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Find the total surface area of the hemisphere whose radius is : (a) 14 cm (b) 5 cm

The ratio of the total surface area of a sphere and a hemisphere of same radius is 2:1 (b) 3:2 (c) 4:1 (d) 4:3

The total surface area of a cone of radius r/2 and length 2l , is a) 2pir(l+r) b) pir(l+r/4) c) pir(l+r) d) 2pirl

The total surface area of a cone whose radius is (r)/(2) and slant height 2l is

A cylinder with radius r\ and height h is closed on the top and bottom. Which of the following expressions represents the total surface area of this cylinder? (a) 2pir\ (r+h) (b) pir\ (r+2h) (c) pir\ (2r+h) (d) 2pir^2+h

If the radius of the base of a right circular cone is 3r and its height is equal to the radius of the base, then its volume is (a) 1/3pir^3 (b) 2/3 pir^3 (c) 3pir^3 (d) 9pir^3

The area of the curved surface of a cone of radius 2r and slant height l/2 is a) pirl b) 2pirl c) 1/2 pir l d) pi(r+l)r

If the sum of the areas of two circles with radii r_1 and r_2 is equal to the area of a circle of radius r , then r_1^2 +r_2^2 (a) > r^2 (b) =r^2 (c)

The total surface area of frustum shaped glass tumbler is (r_1 gt r_2) (a) pi r_1 l + pi r_2 l (b) pi l (r_1 + r_2) + pi (r_2)^2 (c) 1/3 pi h ( (r_1)^2 + (r_2)^2 + r_1r_2 ) (d) sqrt (h^2 + (r_1 - r_2)^2)

RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions

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