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Go Math! Chapter 11 Vocabulary, 4th Grade
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Gravity
Key Concepts:
Terms in this set (12)
clockwise
The same direction the hands on a clock move.
angle
Two rays with a common endpoint.
ray
A part of a line, with one endpoint, that continues without end in one direction forvever.
counter clockwise
The opposite direction that the hands move on a clock (To the Left).
circle
A plane figure with all points the same distance from a fixed point called a center.
vertex
A point where two lines segments or rays meet to form an angle.
degree
A unit used to measure distances around a circle. One degree equals 1/360 of a full circle.
acute angle
An angle that is less than 90 degrees.
right angle
An angle that measures 90 degrees.
straight angle
An angle that measures 180 degrees.
protractor
A tool used to measure and draw angles.
obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
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