 # RD Sharma Solutions Class 8 Mathematics Solutions for Volume Surface Area Cuboid Cube Exercise 21.1 in Chapter 21 - Volume Surface Area Cuboid Cube

Question 1 Volume Surface Area Cuboid Cube Exercise 21.1

Find the volume of a cuboid whose

(i) length = 12 cm, breadth = 8 cm, height = 6 cm

(ii) length = 1.2 m, breadth = 30 cm, height = 15 cm

(iii)length = 15 cm, breadth = 2.5 dm, height = 8 cm.

(i) The given details are:

Length of a cuboid = 12 cm Breadth of a cuboid = 8 cm

Height of a cuboid = 6 cm By using the formula

Volume of a cuboid = length × breadth × height

= 12 × 8 ×6

= 576 cm3

(ii) The given details are:

Length of a cuboid = 1.2 m = 120 cm

Breadth of a cuboid = 30 cm

Height of a cuboid = 15 cm

By using the formula

Volume of a cuboid = length × breadth × height

= 120 × 30 × 15

= 54000 cm3

(iii) The given details are:

Length of a cuboid = 15 cm

Breadth of a cuboid = 2.5 dm = 25 cm

Height of a cuboid = 8 cm

By using the formula

Volume of a cuboid = length × breadth × height

= 15 × 25 × 8

= 3000 cm3

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