Solve:
16. The length of a box is 15 cm, the height is 8cm and the width is 10 cin. Find the surface
area?
17. One side of a cube is 5 cm. What is the surface area?
18. The radius of a cone is 5 cmn and the slant height is 8 cm. What is the surface area.
19. The radius of a can of milk is 5 cm and the height is 10 cm. Find the surface area.
20. A ball has a radius of 12 cm. What is the surface area?​