an aquarium is in a form of cuboid whose external measures or 80 cm ×30 cm × 40 cm the base the side faces and back faces or to be covered with the coloured paper find the area of paper needed
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
The length of the aquarium = l = 80 cm
Width of the aquarium = b = 30 cm
Height of the aquarium = h = 40 cm
Area of the base = l × b = 80 × 30 = 2400 cm sq.
Area of the side face = b × h = 30 × 40 = 1200 cm sq.
Area of the back face = l × h = 80 × 40 = 3200 cm2 sq.
Required area = Area of the base + area of the back face
+ (2 × area of a side face)
= 2400 + 3200 + (2 × 1200) = 8000 cm sq.
Hence the area of the coloured paper required is 8000 cm sq.