Question

Each side of a cube is measured to be 7.203 m. What is (i) the total surface area and (ii) the volume of the cube to appropriate significant figures.

Answer 1

Hello
the answer is

T.S.A = 6a^2

= 6×7.203^2

= 6×51.883209

= 311.299254

volume of cube = (a)^3

= (7.203)^3

= 373.714654427

Hope, it will help you...

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Answer 2

Hii dear,

# Answer-
A = 311.3 sq.m
V = 373.7 cu.m

# Solution-
Consider l be the side of cube.
Given is
l = 7.203 m (4 significant figures)

Area and volume of the cube should be upto least significant figures.
i.e. here 4.

Surface area of cube-
A = 6l^2
A = 6×(7.203)^2
A = 311.299254
A = 311.3 sq.m (4 significant figures)

Volume of cube-
V = l^3
V = (7.203)^3
V = 373.714754427
V = 373.7 cu.m (4 significant figures)

That'll help you...