Question

11. The area of four walls of a room is 150 m². If the length of the room is twice its breadth and the height.​

Answer 1

Answer:

breath= height= 5 m

length =10 m

Step-by-step explanation:

Let, height and breadth be X m

length= 2X m

Area of the four wall = perimeter of floor* height

= 2(2X+X)*X

= 2*3X*X m^2

= 6 X^2 m^2

According to the question,

6X^2 = 150

or, X^2 = 150/6= 25

or, X= √25=5

Therefore, breadth= height= 5 m

and length= 10 m