measuring and drawing angles with a protractor by christine berg edited by v hamilton l.
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Measuring and Drawing Angles with a Protractor By Christine Berg Edited By V Hamilton. Protractor. Center Hole. Protractor. Straight Edge. Protractor. Curved Edge. Step 1:. Place the center hole over the vertex of the angle. Step 2:.

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Presentation Transcript
protractor
Protractor

Center Hole

protractor3
Protractor

Straight Edge

protractor4
Protractor

Curved Edge

step 1
Step 1:

Place the center hole over the vertex of the angle

step 2
Step 2:

Line up (make parallel) the straight edge with one side of the angle

step 3
Step 3:

Find the point where the second side of the angle intersects with the curved edge

step 4
Step 4:

Read the number on the protractor to find the measure of the angle

step 110
Step 1:

Draw a ray with the straight edge of the protractor

step 211
Step 2:

Place the center hole over the starting point of the ray

step 312
Step 3:

Place a dot at the angle measure required

step 313
Step 3:

Line up the straight edge over the starting point of the ray and the dot

step 414
Step 4:

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

try this
Try this:

Draw an angle which measures 120o