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Measuring and Drawing Angles with a Protractor By Christine Berg Edited By V Hamilton.

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Presentation on theme: "Measuring and Drawing Angles with a Protractor By Christine Berg Edited By V Hamilton."— Presentation transcript:

1 Measuring and Drawing Angles with a Protractor By Christine Berg Edited By V Hamilton

2 Protractor Center Hole

3 Protractor Straight Edge

4 Protractor Curved Edge

5 Step 1: Place the center hole over the vertex of the angle

6 Step 2: Line up (make parallel) the straight edge with one side of the angle

7 Step 3: Find the point where the second side of the angle intersects with the curved edge

8 Step 4: Read the number on the protractor to find the measure of the angle

9 Drawing Angles with a Protractor

10 Step 1: Draw a ray with the straight edge of the protractor

11 Step 2: Place the center hole over the starting point of the ray

12 Step 3: Place a dot at the angle measure required

13 Step 3: Line up the straight edge over the starting point of the ray and the dot

14 Step 4: Draw a ray connecting the two marks. The point at which they meet is called the vertex

15 Try this: Draw an angle which measures 120 o

16 Answer: ^ >


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