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Sec 1-4 Concepts: Classifying Angles Objectives: Given an angle, name, measure and classify it as measured by a s.g.

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Presentation on theme: "Sec 1-4 Concepts: Classifying Angles Objectives: Given an angle, name, measure and classify it as measured by a s.g."— Presentation transcript:

1 Sec 1-4 Concepts: Classifying Angles Objectives: Given an angle, name, measure and classify it as measured by a s.g.

2 Example 1: Name the { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_2.jpg", "name": "Example 1: Name the

3 Classify the angle with the given measure as acute, obtuse, right or straight. m { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_3.jpg", "name": "Classify the angle with the given measure as acute, obtuse, right or straight.", "description": "m

4 Use a protractor to measure the angle. Then classify it. 1. 2. 101 131

5 Example 3: Find the indicated angle measure 120 60 a bc e d f g 15

6 Example 4: For each city on the polar map, estimate the measure of { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_6.jpg", "name": "Example 4: For each city on the polar map, estimate the measure of

7 Angle Addition Postulate If P is in the interior of { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_7.jpg", "name": "Angle Addition Postulate If P is in the interior of

8 Example 6: Use the angle addition postulate to solve for x. Then find the measure of each angle. O P R Q (X+4) + (2x-2) = 26 3x+2=26 3x=24 X=8 m { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_8.jpg", "name": "Example 6: Use the angle addition postulate to solve for x.", "description": "Then find the measure of each angle. O P R Q (X+4) + (2x-2) = 26 3x+2=26 3x=24 X=8 m

9 Example 6 cont.: Use the angle addition postulate to solve for x. Then find the measure of each angle. O P R Q (3X+7) + (5x-2) = 61 8x+5=56 8x=56 X=7 m { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_9.jpg", "name": "Example 6 cont.: Use the angle addition postulate to solve for x.", "description": "Then find the measure of each angle. O P R Q (3X+7) + (5x-2) = 61 8x+5=56 8x=56 X=7 m

10 Example 7: JK bisects < HJL. Given that m { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_10.jpg", "name": "Example 7: JK bisects < HJL. Given that m

11 Example 8: BD bisects { "@context": "http://schema.org", "@type": "ImageObject", "contentUrl": "http://images.slideplayer.com/2/773046/slides/slide_11.jpg", "name": "Example 8: BD bisects

12 Todays Work


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