Lesson 3
1. Lesson 3
1.7. Explore 3
Module 5: Geometry
In Try This 3, you may have found that the measure of each interior angle increases as the number of sides of the polygon increases. The sum of the interior angles of a polygon increases by 180° each time a side is added to the polygon. As the number of sides of a polygon increases, the sum of the interior angles increases.
Self-Check 2

Answer “Build Your Skills” questions 3 and 4 from page 208 of the textbook. Answer
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Throughout the lesson, you have looked at properties of regular polygons. In the next Try This, you will try to construct a set of regular polygons and explore how this concept applies to the construction of materials.
A hexagon is a regular polygon that is often used in construction, as can be seen in the chicken wire shown. Hexagons can also be seen in honeycomb structures.
Try This 4

Read “Activity 5.3 Honeycomb Structures” on pages 205 and 206 of the textbook.
Complete “Part A: Assembly and Testing” questions 1 to 5 starting on page 205 of the textbook. Then answer questions 1 and 2 from “Part B: Assessing Honeycomb Structures” on page 206 of the textbook.
Save your responses in your course folder.