Question

find the surface are of a cube whose volume is 512cm²​

Answer 1

$\bigstar\huge\bf\underline{\underline{Given:-}}$

• Volume is 512cm²

$\bigstar\huge\bf\underline{\underline{To \ find:-}}$

• The surface area of cube

$\bigstar\huge\bf\underline{\underline{Solution:-}}$

Volume = 512cm²

(Volume of cube = side³)

Volume = 512

Side³ = 512

side = ∛512

side = 8cm

Surface area = 6a²

6 × 8²

6 × 64

384cm²

Therefore, surface area = 384cm²

Answer 2

Given:-

Volume = 512²

Here, volume of cube = side³

So, volume = 512

→Side³ = 512

→Side = √512

→∴Side = 8cm

The surface area = 6a²

(a = 8)

⇒6 × 8²

⇒6 × 64

384 cm²