Question

The length, breadth and thickness of
a rectangular sheet of metal are 4.234
m, 1.005 m, and 2.01 cm respectively.
Give the area and volume of the sheet to
correct significant figures.
[Ans: 4.255 m², 8.552 m]​

Answer 1

Answer

• Area = 29.6 m²
• Volume =8.552'm³

Explanation

Given

• Length = 4.234 m
• Breadth = 1.005 m
• Height = 2.01 m

To Find

• Area and the volume to the cuboid?

Solution

Area of the cuboid

➝ 2(lb+bh+lh)

➝ 2[(4.234×1.005)+(1.005×2.01)+(4.234×2.01)]

➝ 2[4.2+2.1+8.5]

➝ 2[14.8]

➝ Area = 29.6 m²

Volume of the cuboid

➝ Volume = lbh

➝ 4.234 × 1.005 × 2.01

➝ Volume = 8.552 m³