5th Grade Geometry
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triangles and quadrelateras
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12 Terms
Acute Triangle
A triangle that has all angles that are acute.
Acute Angle
An angle that measures less than 90 degress.
Right Triangle
A triangle that has one angle measuring exactly 90 degrees.
Right Angle
Angle that measures exactly 90 degrees.
Obtuse Triangle
A triangle that has an obtuse angle.
Obtuse Angle
An Angle that measures more than 90 degrees
Equilateral Triangle
A triangle with all sides of equal lenghts.
Isosceles Triangle
A triangle that has two sides of equal length
Scalene Triangle
A triangle with all sides of different length.
What do the angles of an equilateral triangle measure?
What are the 3 types of triangles classifications by angles?
right, acute, obtuse
What are the 3 types of triangles classifications by side lengths?
scalene, isosceles, equilateral
