By H. T. Clifford

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South America is located west of Australia, or Australia is located east of South America. Section B Finding Your Way 1. a. Here is one possible drawing. Your drawing might be different. b. Here is one possible response: In Sunray, all of the blocks are square because there are no streets in the directions NW, NE, SW, SE, and it is easy to find a place if you know its address. In the town I drew, the streets are named after my pets and my friends’ pets. 52 Figuring All The Angles Answers to Check Your Work 2.

3-gon Triangle ? 4-gon Square ? ? 5-gon Pentagon ? 6-gon Hexagon ? 8-gon Octagon 9. Copy the following table in your notebook and complete it. You can use the polygons above to help you reason about the size of the angles. If you have trouble, imagine the polygons are sled tracks. How large is each turn? You might want to think about the size of the equal turns. Name Number of Angles Triangle Square 3 Measure of One Interior Angle 60° Sum of All Interior Angles 180° 4 12-gon 5 135° 540° 1800° 10.

Section G: Angles and Their Measures 39 G Angles 4. For each of the angles below, indicate whether it is right, acute, or obtuse. a. c. b. e. d. f. Measures of Angles The following mosaic tile has three angles of 60°. Here is the tile used in problem 3. 45˚ 60˚ 45˚ 90˚ 60˚ 60˚ Combining both tiles forms the figure: D ? 60˚ 45˚ ? C 45˚ ? 60˚ 60˚ A ? B 5. a. Classify the angles ∠A, ∠B, ∠C, and ∠D according to their size. b. Find the measure of each angle. 40 Figuring All The Angles Angles and Their Measures G You know there are 360° in one complete turn.

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