Surface area of each base `= pi ( R^2-r^2)` sq. units.

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

Write True or False If two solid hemispheres of same type whose base radii are r unit each and if they are connected along base. Then the total surface area of the connected solid is 6pir^2 sq.unit.

Two similar cones have volumes 12 pi cm. inits and 96 pi cm .units.If the curved surface area of the smaller cone is 15 pi sq. units.What is the curved surface area of the larger one?

Two similar cones have volumes 12pi cu. Units and 96 pi cu. Units. If the curved surface area of the smaller cone is 15 pi sq. units ,What is the curved surface area of the larger one?

Two similar cones have volumes 12pi cu. Units and 96 pi cu. Units. If the curved surface area of the smaller cone is 15 pi sq. units ,What is the curved surface area of the larger one?

If the whole surface area of a right circular cone be A_1 sq- unit andif its curved surface area be A_2 sq-unit, then the area of the base is (A_1-A_2) sq-unit.

Total surface area of hemisphere is ……….. sq. units.