11. I found 28 square units for the lower rectangle and 24.5 square units for the upper triangle. 12. I found 28 square units for the lower rectangle and 24.5 square units for the upper triangle. 13. A plane section at a distance of units from the origin has an area of square units where 14. An element of volume, is a right cylinder of base area square units and a thickness of units. 15. Let us say I want to make an isosceles right triangle with an area of 100 square units . 16. He also acquired Hechinger Co . and Kmart's Builders Square unit , which he merged to create a home-improvement chain. 17. The home uses a square unit system, but introduces 30 and 60 degree angles to eliminate right angle corners. 18. Draw a tetrahedron whose faces have ratio 3 square units, 4 square units , 5 square units, and 6 square units. 19. Draw a tetrahedron whose faces have ratio 3 square units , 4 square units, 5 square units, and 6 square units. 20. Each 16-foot-square unit has a small deck that usually affords a good view of the blue-green bays below the camp.
