The perimeter of a book is 100 cm. If its width is 22 cm, its length is ______?
The perimeter of a book is 100 cm. If its width is 22 cm, its length is ______?
Explanation
The perimeter formula for a rectangle is 2(Length + Width) = Perimeter.
Substituting values: 2(L + 22) = 100 → L + 22 = 50 → L = 28 cm.