Write True or False
Height, radius and slant height of a right circular cone are the sides of the right angled triangle.

The slant height of a right circular cone is always greater than the height of the cone.

If the height and slant height of a right circular cone are 5cm. And 13cm. Then the volume of the cone is

The slant height of a right circular cone of radius of base 4 unit and of height 3 unit is 6 unit.

The length of slant height of a right circular cone is always greater than the length of its height .

Write whether the following statements are true or false : (ii) The radius of base , height and slant height of a solid right circular cone are r unit h unit and l unit respectively . The base of the cone is joint along the base of solid right circular cylinder. If the radii of the bases and heights of the cylinder and of the cone be equal , then the total surface area of the joint solid object will be (pirl + 2pirh +2 pir^(2)) sq - unit

Write True or False If the length of the radius of a right circular cylinder is doubled and height is halved , then lateral surface area is equal to the lateral surface area of the original cylinder.

If the base radius and height of a right circular cone are r and h respectively, then the volume of the cone is

If the base radius and height of a right circular cone are 28dcm. And 21dcm., then the slant height of the cone is

Write True or False If the ratio of three sides of a triangle is 3:4:5, then the traingle is always a right angled triangle.

Write True or False If the length of radius of a right circular cylinder doubled then the volume of it will be douybled the prevous cylinder.