Question

q8. The perimeter of a room is 18 m. It is 4 m wide. Find its length and area. QNO.8 ONLY PLZ ​

Answer 1

Answer:

the perimeter of room = 2(l+b)

18 = 2(l+4)

18 = 2l + 8

18-8 = 2l

$\frac{10}{2} = l$

l = 5

the area of room = l × b

= 5 × 4

= 20m²