Question

find volume of cube whole total surface area is 486cm

Answer 1

aloha!

⊱ ────── {⋅. ✯ .⋅} ────── ⊰

we know that the formula for surface area of cube is 6n² { where n= side }

so,

6n² = 486      { given }
n²   = 486/6
n²   = 81
n    = √81
n    = 9cm

now we know that the volume of cube = side³
                                                                 = 9³
                                                                 = 729 cm³

⊱ ────── {⋅. ✯ .⋅} ────── ⊰


hope it helps :)

Answer 2

Hey friend here is ur ans

TSA = 486 cm2

therefore, TSA of cube is 6 (side)^2

486 ÷ 6 = side ^2
81 = side^2
side = root 81
Side = 9 cm ..

Now as we got side of cube .
Volume of cube is = (side) ^3
= (9)^3
= 729 cm3

i hope it was helpful
plzz mark it as brainlest.