Q6 of 189 Page 512

What is the maximum length of a pencil that can be placed in a rectangular box of dimensions (8cm × 6cm × 5cm)?
(Given )

Maximum length of a pencil = diagonal of the cuboid

Now, the diagonal of cuboid is =

Thus,

Length of longest rod

= 5√5 cm

= 5(2.24) cm

= 11.2 cm

A beam 9 m long, 40 cm wide and 20 cm high is made up of iron which weighs 50 kg per cubic metre. The weight of the beam is

The length of the longest rod that can be placed in a room of dimensions (10m × 10m × 5m) is

The number of planks of dimensions (4m × 5m × 2m) that can be stored in a pit which is 40, long 12 m wide and 16 m deep, is

How many planks of dimensions (5m × 25cm × 10cm) can be stored in a pit which is 20 m long, 6 m wide and 50 cm deep?

What is the maximum length of a pencil that can be placed in a rectangular box of dimensions (8cm × 6cm × 5cm)?(Given )