3 locate the point on the protractor where intersects

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3. Locate the point on the protractor where intersects the outside edge of the protractor. Use the scale that begins with 0 on that edge and read the measure on that scale that aligns with . Chapter 1 31 Teaching Geometry with Manipufatives
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NAME DATE PERIOD . (Use with Lesson 1-4) Objective Construct an angle congruent to a given angle . Materials pencils/pens compass straightedge protractor paper Construct Congruent Angles 1. Use the straightedge to draw an angle. Label it ABC. Beside ABC, use the straightedge to draw . Your constructions should be larger than the illustrations. 2. Place the compass point at B. Draw an arc that intersects the sides of ABC. Label the intersections M and N. 3. Keeping the same compass setting, place the compass point at X and draw an arc that intersects . Label this intersection P. 4. On ABC, set the compass at point N. Adjust the compass so that the tip of the pen is on M. ( You are measuring the distance from M to N.) Using the same compass setting, place the compass point at P, and draw an arc that intersects the larger arc you drew before. Label this intersection Q. 5. Us e th e str ai gh te dg e to dr a w .
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