10-3 Areas of Regular Polygons To find the area of a regular polygon In finding the area of a regular polygon, students will find a polygon of n sides.

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Presentation transcript:

10-3 Areas of Regular Polygons To find the area of a regular polygon In finding the area of a regular polygon, students will find a polygon of n sides to be composed of n congruent triangles and find the areas of those triangles. As a result, they will determine a formula for the area of a regular polygon.

10-3 Quiz The following questions are to help you decide how well you understood today’s lesson. Please make sure you ask questions when you miss one so you don’t make the same mistakes on your homework! Remember to record the number you get right on your portfolio sheet!

1. Given the regular polygon, find the measure of each numbered angle. Non-Response Grid

2. Find the area of a regular hexagon with an apothem 16.5 feet long and a side 19 feet long. Round your answer to the nearest tenth. A ft 2 B ft 2 C ft 2 D ft 2 Non-Response Grid

3. Find the area of a regular hexagon with side length of 8 m. Round your answer to the nearest tenth. A.55.4 m 2 B m 2 C.83.1 m 2 D.288 m 2 Non-Response Grid

4. Find the area of an equilateral triangle with side 12. Non-Response Grid

5. Find the area of the regular polygon. Round your answer to the nearest tenth. A in. 2 B in. 2 C.80.0 in. 2 D in. 2 Non-Response Grid

ASSIGNMENT 10-3 p #8-34 even Be sure to RATE your understanding of the lesson after you finish it AND give me one complete sentence as to why you rated yourself that way then summarize what the lesson was about in a sentence or two.