If a rectangle has length 7 and width 4, what is the sum of its area and its perimeter?

• A. 44
• B. 34
• C. 50
• D. 22

Answer: (C)

Think about area and perimeter together by finding each part separately and then adding them. The area of a rectangle is length times width, so with 7 and 4 it’s 7 × 4 = 28. The perimeter is the distance around the rectangle, which is 2 × (length + width). That’s 2 × (7 + 4) = 2 × 11 = 22. Add them together: 28 + 22 = 50. The sum of the area and the perimeter is 50.