Page 148 - Math Course 1 (Book 2)
P. 148
Geometric Area: Composite Figures
Determine the cross-section resulting from the horizontal and vertical slice of each solid.
9. 10.
11. SPHERES Consider the sphere in Exercise 5. Based on the cross-section resulting from the horizontal and
vertical slice of the sphere, make a conjecture about all spherical crosssections.
12. MINERALS Pyrite, also known as fool’s gold, can form crystals that are perfect cubes. Suppose a
gemologist wants to cut a cube of pyrite to get a square and a rectanglar face. What cuts should be
made to get each of the shapes? Illustrate your answers.
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