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Terms to Understand M.6.3.1.K7

Classify angles as right, obtuse, acute, or straight. Classify triangles as right, obtuse, acute, scalene, isosceles, or equilateral.

AB
terma word or expression used for some particular thing.
anglethe amount of turning between two lines meeting at a common point.
acute anglean angle measuring less than 90 degrees.
obtuse anglean angle measuring between 90* and 180*.
right anglean angle measuring exactly 90*.
straight anglean angle measuring exactly 180*
equilateral trianglea triangle with three equal sides and three equal angles.
isosceles trianglea triangle with two equal sides and two equal angles.
scalene trianglea triangle in which all three sides are a different length.
equalhaving the same amount or value
degreea unit for measuring the size of angles



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