Protractors have to be half- circles because they measure angles less than 360 degrees.
they use protractors to measure circles
FullCircle Protractors HalfCircle Protractors Square Protractors Rectangular Protractors Military Protractors
You use protractors to measure angles. There is a ruler on the flat edge of most protractors, too. It's very handy!
A quadrant.
The scapular protractors are muscles that move the shoulder blades outward and forward. The main scapular protractors include the serratus anterior and the pectoralis minor. These muscles play an important role in stabilizing the scapula during arm movements.
Protractors
It depends on the type of protractor
name of ballet move half circles made by pointed foot creating letter d on floor
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Protractors are used to measure angles.
Tractors, Protractors
A venn diagram.