Question

an open water tank with length 20 cm and width 15 cm holds 4.8 litres of water calculate the height of water level in the tank and the total surface area of the cuboid in contact with the water​

Answer 1

Answer:

length =20 cm

breadth = 15 cm

height = x cm

volume = 4.8 liters

volume = length * breadth * height

Answer 2

Dear Student,

◆ Answer -

Height of water tank = 16 cm

Area of contact surface = 1420 cm^2

● Explanation -

We know that,

capacity of tank = volume of tank

4800 = 20 × 15 × height

Height = 4800 / 300

Height = 16 cm

Area of the surface in contact with the cuboid is -

Area of contact surface = area of base + lateral surface area

Area of contact surface = lb + 2bh + 2lh

Area of contact surface = 20×15 + 2×15×16 + 2×20×16

Area of contact surface = 300 + 480 + 640

Area of contact surface = 1420 cm^2

Thanks dear. Hope this helps you...