geometry

[cbrenda]

The length of a room is 4 m greater the the width. The perimeter of the room is 28 m. Find the width of the room.

 

[Aladdin]

The length of a room is 4 m greater the the width. The perimeter of the room is 28 m. Find the width of the room.

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Solution :

L= w + 4

Perimeter = Sum of sides = 2L + 2w = 28 ;

2(w + 4) + 2w = 28 ;

2w + 8 + 2w = 28 ;

w = ? ;