452 Why This Is Important b Basketballs and basketball courts are examples of geometric objects. 8 Many objects we encounter daily can be described using geometry. Spherical basketballs bounced on a rectangular court, cylindrical cans of vegetables, rectangular tablet computer screens, and ice-cream cones are all examples of geometric objects we frequently encounter. Geometry also plays a key role in scientific research. The shape of DNA molecules, animal and plant cells, bacteria, and viruses are described using geometry. The position of atoms within a molecule or of molecules within a crystal are described using geometry. Furthermore, engineers use geometry extensively when they create items that are used in the products we use every day. For example, the antennae of most cell phones are in the geometric shape described as fractal. In this chapter, we will study some of these and many other applications of geometry that affect our everyday lives. Geometry Sections 8. 1 Points, Lines, Planes, and Angles 8. 2 Polygons 8. 3 Perimeter and Area 8. 4 Volume and Surface Area 8. 5 Transformational Geometry, Symmetry, and Tessellations 8. 6 Topology 8. 7 Non-Euclidean Geometry and Fractal Geometry A.RICARDO/Shutterstock
RkJQdWJsaXNoZXIy NjM5ODQ=