Question

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6. Find the lateral surface area of a cuboid whose dimensions are 16 cm x 11.5 cm x 2.8 cm.
7. The perimeter of floor of a room is 42 m and its height is 4 m. Find the area of the wall paper to
be pasted on its four walls.
8. Find the total and lateral surface area of a cube whose edge is 1.2 m long.
9. Three cubes each of side 5 cm are joined end to end. Find the surface area of the resulting
cuboid.
10. A cuboid has total surface area 4048 cm and lateral surface area is 253 cm?. Find the area of its
base.
11. Find the area of the cardboard required to make an open box of length 28 cm, breadth 2 cm and
height 3.6 cm.
12. An aquarium is in the form of a cuboid whose external measures are 80 cm x 30 cm x 40 cm. The
bottom, side faces and back face are to be covered with a coloured paper. Find the area of the
paper needed ?​

Answer 1

Answer:

6) Find the lateral surface area of a cuboid whose dimensions are 16 cm x 11.5 cm x 2.8 cm.