Sheet # 126 Critical Thinking

Name: _____________________ Date_____________

1. Find at least 3 different rectangles that have a perimeter of 20 centimeters. Draw them, and label the sides. Give each rectangle a number so you can refer to it later.

2. Which rectangle with a perimeter of 20 would have the largest area? Explain how you know this?

3. Which rectangle with a perimeter of 20 would have the least area? Explain how you know this?

Answers for sheet # 126

1) Rectangle # 1 = 4 cm x 6 cm

2) Rectangle # 2 = 3 cm x 7 cm

3) Rectnagle # 3 = 2 cm x 8 cm

All three rectangles have 20 cm perimeter.

2) Rectangle #1 has the largest area.

3) Rectangle # 3 has the least area.