Question

area of four walls of a room is 150 metre square if the length of the room is twice its breadth and the height is a 4 metre find the area of the floor​

Answer 1

Answer:

Step-by-step explanation:

Given area of four walls = 150 m²

let breadth = b

Length is twice its breadth

Therefore length = 2b

Height = 4 m

Now curved surface area of cuboid = 2h(l+b)

so

length;l = 2b = 2 x 6.25 = 12.50 cm

Area of floor = l x b= 6.25 x 12.50  = 78.125 cm²

Hence, area of the floor is 78.125 cm²

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