A rectangular card has an area of 60 square centimeters. It is 4 centimeters longer than it is wide. What is the perimeter of the card? Explain or show your reasoning.

Draw 2 rectangles on the grid with a perimeter of 20 units whose areas are different. What is the area of each rectangle?

Draw 2 rectangles on the grid with an area of 30 square units whose perimeters are different. What is the perimeter of each rectangle?

Clare draws a rectangle.

1. She says that the perimeter of her rectangle is 36 units. What rectangle could Clare have drawn?
2. Then she says that her rectangle has the largest area possible. What rectangle could Clare have drawn?

Draw a rectangle on the grid but don’t show it to your partner. Give your partner clues to help them guess the perimeter and area of your rectangle. Try not to just tell them the side lengths of your rectangle.