Question

if volume of a cube is 729cm find it's
and surface area​

Answer 1

Answer:

Step-by-step explanation:

Volume of a cube=(Side)^3

Let the side of a cbe be "a".

Then a^3=729

axaxa=9x9x9

a=9cm

Surface area of a Cube=6a^2

=6xaxa

=6x9x9

=486  sq.cm

Answer 2

As we know that volume of a cube =

a cube. or a3

so, volume of the cube given= 729 cm

=> a3 = 729cm

= a = √ 729

= a = 9 cm

Total surface area of a cube =6a2

=> 6 × (9 square)

= 6×81= 486cm2

Lateral surface area of a cube =4a2

=> 4×(9 square)

= 4×81=324cm2.