Question

Find the volume and total surface area of a cube which has side 15cm.

Answer 1

Answer:

length-15cm

volume=15×15×15cm^3

=3375cm^3

area=15×15cm^2

=225cm^2

total surface area=6×225cm^2

=1350cm^2

Answer 2

Given :–

• Side os cube = 15cm.

To Find :–

1. Volume of a cube.
2. Total Surface Area (T.S.A.) of a cube.

Solution :–

1. We know that,

Volume of a cube = a²

• Side = a = 15cm

So,

⟹ (15)³

⟹ 15 × 15 × 15

⟹ 3375cm³

2. We know that,

Total Surface Area (T.S.A.) = 6a²

• Side = a = 15cm

So,

⟹ 6(15)²

⟹ 6(15 × 15)

⟹ 6(225)

⟹ 1350cm²

Hence,

1. The volume of a cube = 3375cm³
2. The total surface area (T.S.A) of a cube = 1350cm²