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Lecture on Angle

This lecture covers the different types of angles, including acute, right, obtuse, and straight angles. It also explains congruency and the difference between open and closed figures. Study these concepts to gain a better understanding of geometry.

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Lecture on Angle

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  1. Lecture on Angle www.assignmentpoint.com

  2. ANGLES • When you “name” an angle. The vertex/angle “letter/number” goes in the center of the label B A C If I wanted to know the measurement of Angle A…I would ask:” What is the measurement for BAC?” (Notice A is in the center) www.assignmentpoint.com

  3. 4 TYPES OF ANGLES • ACUTE ANGLES are less than 90° www.assignmentpoint.com

  4. 4 TYPES OF ANGLES • RIGHT ANGLES measure exactly 90 ° The “square” symbol means 90’ www.assignmentpoint.com

  5. 4 TYPES OF ANGLES • OBTUES ANGLES are greater than 90 ° but less than 180 ° www.assignmentpoint.com

  6. 4 TYPES OF ANGLES • STRAIGHT ANGLE is exactly 180 ° www.assignmentpoint.com

  7. CONGRUENT • CONGRUENT means the “same” • CONGRUENT LINE SEGMENTS means two line segments are the same • CONGRUENT Vertex/Angles means two angles are the same ● ● ● ● The Hershey & Crunch Bar are a Congruent size www.assignmentpoint.com

  8. VERTICAL LINE • A VERTICAL LINE goes up & down The candy bars are vertical www.assignmentpoint.com

  9. OPEN & CLOSED FIGURES • A CLOSED FIGURE/SHAPE starts and ends at the same point. • An OPEN FIGURE/SHAPE does NOT start and end at the same point. CLOSED OPEN Start Start ● ● ● End www.assignmentpoint.com End

  10. The End • Once you study all the “fancy words”, Geometry is very easy to understand…so STUDY! www.assignmentpoint.com

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