Question

2. Horse stable is in the form of a cuboid, whose
external dimensions are 70 m x 35 m x 40 m,
surrounded by a cylinder halved vertically
through diameter 35 m and it is open from one
rectangular face 70 m x 40 m. Find the cost of
painting the exterior of the stable at the rate of
2 per m2. Also, verify your answer.
[HOTS]​

Answer 1

Answer:

The dimensions of cuboid are 50×40×25

The Lateral surface area of cuboid is given by 2h(l+b)

Here l=50;b=40;h=25

Lateral surface area is 2×25(50+40)=50(90)=4500

And the base area is given by lb=(40)(50)=2000

So The total area is given by 4500+2000=6500