Question

Please help me let me know how you got the answer

Answer 1

Area of building is $3,84,000m^3$ .

Step-by-step explanation:

Here we have , a figure in given below picture where we have to find volume of this office building , Let's find out:

If we look closely we see that it's basically cuboid with dimensions 50 m by 110 m by 70 m . But there's one small cuboid sliced off from this cuboid with dimensions 50 m by 10 m by (110-90) m i.e.  50 m by 10 m by 20 m .

Area of building = Area of larger cuboid - Area of smaller cuboid

Area of cuboid = $length(width)(breadth)$

⇒ Area of building = Area of larger cuboid - Area of smaller cuboid

⇒ $Area = (50(110)(70))m^3 - (50(10)(20))m^3$

⇒ $Area = 3,85,000m^3 - 10,000m^3$

⇒ $Area = 3,84,000m^3$

Therefore, Area of building is $3,84,000m^3$ .