Total surface area `=(2 pi r h + 2 pi r^2)`sq.

Total surface area =(2 pi rh+2 pi r^(2)) sq.

Total surface area quad =2 pi Rh+2 pi rh+2 pi(R^(2)-r^(2))

Curved (lateral) surface area = (External surface areal) (Internal surface area)= 2 pi Rh+2 pi rh=2 pi h(R+r)sq. units.

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? 2 pi r(r+h) (b) pi r(r+2h)pi r(2r+h)(d)2 pi r^(2)+h

The radius of a sphere is 3 cm. Its total surface area will be : (1) 18pi cm^(2) (ii) 36 pi cm^(2) (iii) 72pi cm^(2) (iv) 108 pi cm^(2)

The radius of a sphere is 3 cm. Its total surface area will be : (1) 18pi cm^(2) (ii) 36 pi cm^(2) (iii) 72pi cm^(2) (iv) 108 pi cm^(2)

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 diameter of the base of a closed right circular cylinder be equal to its height h, then its whole surface area is 2 pi h^(2) (b) (3)/(2)pi h^(2)(c)(4)/(3)pi h^(2)(d)pi h^(2)

A solid cylinder has the total surface area 231 sq. cm. If its curved surface area is 2/3 of the total surface area, then the volume of the cylinder is: