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Related Flashcards
Cards In This Set
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Acute Triangle
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A triangle with three acute angles
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Equiangular Triangle
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A triangle with three equal angles. Each angle measures 60 degrees
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Obtuse Triangle
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A triangle with one obtuse angle.
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Right Triangle
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A triangle with one right angle.
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Equilateral Triangle
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A triangle with three congruent sides
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Isosceles Triangle
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A trianlge with two congruent sides.
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Scalene Triangle
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A triangle with no congruent sides.
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Exterior Angle
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An angle formed by one side of a trianlge and the extension of the adjacent side of the trianlge
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Remote Interior Angles
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The two angles in a triangle that are not adjacent to the exterior angle.
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Triangle Angle-Sum Theorem
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The sum of the measures of the angles of a triangle is 180 degrees.
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Exterior Angle Theorem
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The measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles.
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Triangle Angle-Sum Corollaries
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The acute angles of a right triangle are complementary
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Congruent Polygons
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Two polygons are congruent if and only if their corresponding parts are congruent.
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Third Angle Theorem
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If two angles of one triangle are congruent to two angles of a second triangle, then the third angles of the triangles are congruent.
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SSS
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If three sides of one triangle are congruent to three sides of a second triangle, then the triangles are congruent.
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