Copyright by The Goodheart-Willcox Co., Inc.
164
Section 4 Measurement
Convert the following square millimeters to square inches. Round to the nearest tenth. Show all your
work. Be certain the columns line up. Box your answers.
19. 1550 mm2
21. 100m m2
23. 645.16mm
2
20. 5161.28 mm
2
22. 9675.5mm
2
24. 500000 mm
2
25. A customer orders 32 pieces of the plate in the diagram below. What is the total area of the plates?
26. Calculate the perimeter of the following L-shaped plate.
27. Calculate the area of the following L-shaped plate.