Triangle congruence
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| a line drawn in a figure to aid in a proof. | Auxiliary Line
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| A triangle with three acute angles | Acute Triangle
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| A triangle with three congruent acute angles | Equiangular Triangle
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| A triangle with one right triangle | Right Triangle
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| A triangle with one obtuse triangle | Obtuse Triangle
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| A triangle with three congruent sides | Equilateral Triangle
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| A triangle with at least two congruent sides | Isosceles Triangle
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| A triangle with no congruent sides | Scalene Triangle
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| A theorem whose proof follows directly form another theorem. | Corollary
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| The set of all points inside a figure | Interior
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| The set of all points outside a figure | Exterior
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| An angle formed by two sides of a triangle | Interior Angle
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| An angle formed by one side of the triangle and the extension of an adjacent side | Exterior Angle
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| An interior angle that is not adjacent to the exterior angle | Remote interior angle
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| Angels in the same position in two different polygons that have the same number of angles. | Corresponding angles of polygons
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| Sides in the same position in two different polygons that have the same number of sides. | Corresponding sides of polygons
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| Two polygons whose corresponding sides and angles are congruent. | Congruent polygons
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| A property of triangles that states that if the side lengths of a triangle are fixed, the triangle can have only one shape. | Triangle rigidity
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| An angle formed by two adjacent sides of a polygon. | Included angle
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| The common side of two consecutive angles in a ploygon. | Included side
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| CPCTC | Corresponding Parts of Congruent Triangles are Congruent.
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| Congruent sides of an isosceles triangle | Legs
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| The angle formed by the legs | Vertex angle
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| The side opposite the vertex angle | Base
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| The two angles that have the base as a side | Base angles
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Created by:
bhsgeometry
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