Question

1.A cuboid trank is 15m long 50cm. wide and 50cm.high. find its volume ?
2.Perimeter of a square is 128 cm. Find its area?
3.A rectangulares 50m long and 40m wide. Find
the cost of event at the rate of Rs. 4 per square meter.
4.A milkman delivers milk in a rectangular base can measuring 10 or 10 cm x 15 cm. Find its capacity in litres? ​

Answer 1

1. Given :

length = 15m = 1500cm

Breath = 50cm

heights = 50cm

Volume of cuboid = l × b × h

= 1500 × 50 × 50

= 3750000cm³

2. Perimeter of square = 128cm

4a = 128cm

a = 128/4

a = 32cm

Therefore area of square = side × side = 32 × 32 = 1024 cm²