What is the volume of a square pyramid of base edge 10 centimetres and slant height 15 centimetres?

The volume of square pyramid of base edge 5 m and height 12 m is (in cubic centimetres) :

The ratio between the base edges of two square pyramids is 1:4. If the heights are also in the same ratio and the volume of the second pyramid is 400 cubic centimetres, what is the volume of the first square pyramid?

A toy in the shape of a square pyramid has base edge 16 centimetres and slant height 10 centimetres. 500 of these are to be painted and the cost is 80 rupees per square metre. What would be the total cost?

The base edges of two square pyramid are in the ratio 1 : 2 and their heights are in the ratio 1 : 3. The volume of the first pyramid is 180 cubic centimetres. What is the volume of the second?