Question

The perimeter of a room is 18 m. It is 4 m wide. Find its length and area.​

Answer 1

Answer:

length = 5m area = 40m²

Step-by-step explanation:

solution

= perimeter of room (rectangle) = 2(L + B)

= 18 m = 2(L + 4)

= 18 = 2L +8

= 2L = 18-8

= Length = 10/2

= Length = 5m

area of room (rectangle) = Length × Breadth

area = 5 × 8

area of 40 m ²

hope Its HELPS

Answer 2

To Find,

• The length of room
• Area of room

Solution,

Given that,

➞ Perimeter of room = 18m

➞ Breadth of room = 4m wide

• The length of room

As we know that,

Perimeter = 2 ( l + b ),

Where,

• l = Length
• b = Breadth

➞ 2 ( Length + Breadth ) = Perimeter

➞ ( Length + Breadth ) = Perimeter / 2

➞ ( Length + 4 ) = 18 / 2

➞ Length + 4 = 9

➞ Length = 9 - 4

➞ Length = 5

∴ The length of the room is 5m.

• The area of room

As we know that,

Area of rectangle = l × b,

Where,

• l = Length
• b = Breadth

➞ 5m × 4m

➞ 20m²

∴ The area of room is 20m².

Required Answer :

• Length of room = 5m
• Area of room = 20m²