The base of a prism is an equilateral triangle of perimeter 12 centimetres and its height is 5 centimetres. What is its total surface area?

The base of a prism is an equilateral triangle of perimeter 15 centimetres and its height is 5 centimetres. Calculate its volume.

The base of a prism is a rectangle of sides 5 centimeters and 12 centimeters and its height is 20 centimeters. It is split vertically along a diagonal of the base into two triangular prism. What is the lateral surface area of these triangular prism.

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres and its slant height is 13 centimetres. What is the total surface area of the solid? .

What is the circum radius of an equilateral triangle of sides 8 centimetres?

The lateral faces of a square pyramid are equilateral triangles and the. length of base edge is 30 centimetres. What is its surface area?

The base of a wooden prism is a regular hexagon. Its base perimeter is 30 cm and height is 5 cm . a) What is the lateral surface area of the prism? b) If it is divided into 6 equal equilateral triangular prisms, what will be the lateral surface area of each triangular prism?

A solid is made by fixing a hemisphere of same radius on the flat face of a cone. The height of the cone is 12 centimetres and its slant height is 13 centimetres. What is the curved surface area of the hemisphere? .