Question

20. The perimeter of a floor of a room is 17 m. What is the area of four walls of the room, if its height is 4 m?​

Answer 1

Answer:

If the floor is in rectangular shape

Then your answer is,  

Perimeter of rectangle =2(l+b)  

18=2(l+b)  

Then,  

Area of four walls =2(l+b) *h

Area of four walls=18*3

Area of four walls =54m²

Step-by-step explanation: