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SAS Triangle Congruence

Two sets of corresponding sides and included angles prove congruent triangles.

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SAS Triangle Congruence
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Vocabulary

Base Angles

Base Angles

The base angles of an isosceles triangle are the angles formed by the base and one leg of the triangle.
Congruent

Congruent

Congruent figures are identical in size, shape and measure.
Equilateral Triangle

Equilateral Triangle

An equilateral triangle is a triangle in which all three sides are the same length.
Included Angle

Included Angle

The included angle in a triangle is the angle between two known sides.
SAS

SAS

SAS means side, angle, side, and refers to the fact that two sides and the included angle of a triangle are known.
Side Angle Side Triangle

Side Angle Side Triangle

A side angle side triangle is a triangle where two of the sides and the angle between them are known quantities.
Triangle Congruence

Triangle Congruence

Triangle congruence occurs if 3 sides in one triangle are congruent to 3 sides in another triangle.
Rigid Transformation

Rigid Transformation

A rigid transformation is a transformation that preserves distance and angles, it does not change the size or shape of the figure.

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