Question

The area of a rectangular piece of cardboard is 36 sq cm and its length is 9 cm. What is the width of the cardboard?

Answer 1

Area of the rectangle = 36 sq cm
Length = 9 cm
Width = ?

Area of a rectangle = length × width

So, width = `"Area"/"Length" = 36/9` = 4 cm

Thus, the width of the rectangular cardboard is 4 cm.