Question

the perimeter of a room is 18 meter. it is 4 m wide . find it's length and area​

Answer 1

Answer:

Step-by-step explanation:

Perimeter of a room= 2 (l+ b)

18= 2 ( l+ 4)

9 = l+4

l = 9-4

l= 5m.

Area of the room = l × b

= 5 × 4

= 20 m^2

Answer 2

Step-by-step explanation:

Perimeter = 18m

Breadth = 4m

Perimeter = 2×l+4

18m = 2×l +4

9-4 = L

5m = L

A. T. Q

Area of room = 5×4m^2 =20m^2

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