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In Questions 8–11, a rectangle is described. Some are possible and some are crazy. If a problem is possible, find the solution. If it is crazy, explain why.
- A square has an area of 36 centimeters. What is the perimeter?
- A square has a perimeter of 20 centimeters. What is the area?
- Three sides of a rectangle are 19 cm, 7 cm, and 18 cm. Find the area and perimeter of the rectangle.
- Two sides of a rectangle are 7.6 centimeters and 7.5 centimeters. Calculate the area and perimeter of the rectangle.
- Below is a green rectangle with a white rectangular hole. The area of the shaded part is 80 square centimeters. The white rectangle is 5 centimeters long, but someone spilled on the paper so you can't see its width.
Use the following steps to find the width of the white rectangle. - Find the area of the large rectangle.
- Find the area of the white rectangle.
- What is the length of the white rectangle?
- Find the width of the white rectangle.