Question

The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2? (2 marks)

Answer 1

Since 7*12 = 84, you can start with a 7x12 rectangle.

After that, just start increasing the width and using the appropriate length. There's no end of possible sizes with area greater than 84.