Question

(11) An aquarium is in the form of a cuboid whose external measures are 70 cm x 20 cm 0.3 m.
The base, side faces and back face are to be covered with a colored paper. Find the area of the paper needed?​

Answer 1

Step-by-step explanation:

The measures are 70cm, 20cm and 30cm.

[0.3m = 0.3×100= 30cm]

Therefore,

the area of the paper needed= 2 (70×20 + 20×30 + 30×70)

= 2 (1400 + 600 + 2100)

= 2 × 4100 = 8200cm2

Hope It Helps You.