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Geometry Farris 2015.   I can measure and create angles of a given measure by using a protractor. I can classify types of angles by their measurement.

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Presentation on theme: "Geometry Farris 2015.   I can measure and create angles of a given measure by using a protractor. I can classify types of angles by their measurement."— Presentation transcript:

1 Geometry Farris 2015

2   I can measure and create angles of a given measure by using a protractor. I can classify types of angles by their measurement.

3   Angle – a figure formed by two rays, or sides, with a common endpoint called the vertex.  Interior angle – set of all points between the sides of the angle.  Exterior angle – set of all points outside the angle.

4   Postulate 1-3-1 Given line AB and a point O on line AB, all rays that can be drawn from O can be put into a one-to-one correspondence with the real numbers from 0 – 180. Protractor Postulate

5  Types of angles

6   https://www.youtube.com/watch?v=QBUhsL6kTZQ https://www.youtube.com/watch?v=QBUhsL6kTZQ Real life angles

7   Postulate 1-3-2 If S is in the interior of angle PRQ, then measure of angle PQS + measure of angle SQR = measure of angle PQR Angle Addition Postulate example

8   https://www.youtube.com/watch?v=sfO1sAWO0s M https://www.youtube.com/watch?v=sfO1sAWO0s M  Paper, pencil, compass, straight edge needed Constructing Congruent Angles

9   https://www.youtube.com/watch?v=lIwvSzfUkOY https://www.youtube.com/watch?v=lIwvSzfUkOY Constructing Angle Bisectors Angle Bisector – a ray that divides an angle Into two congruent angles.


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