Question

The surface area of cuboid is 552cm square .it's length and breadth are 12 cm and 9 cm respectively find its height and volume​

Answer 1

Step-by-step explanation:

Given length and breadth of a cuboid are 12 and 9 cm respectively.

Surface area of a cuboid is 552 cm.

ATP,

2(length * breadth +length * height + breadth * height) = 552

2(12*9 + 12 * h + 9 * h) = 552

2(108 +12h + 9h) =552

108 + 21h = 552/2

108 + 21h = 276

21 h = 276-108

21 h = 168

h = 168/21

h = 8

Height is 8 cm.

Volume of a cuboid = length * breadth * height cubic unit

= 12 * 9 * 8 cubic cm.

= 864 cubic cm.

Answer:- Height of a cuboid is 8 cm.

Volume of a cuboid is 864 cubic cm.