Geometry Semester 1 Final Exam 1-15

A coordinate point is defined by an ordered pair (x, y) where 'x' represents the horizontal position and 'y' represents the vertical position on the Cartesian plane.

SSS stands for 'Side-Side-Side', which is a criterion for triangle congruence stating that if three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

SAS stands for 'Side-Angle-Side', which is a criterion for triangle congruence stating that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

ASA stands for 'Angle-Side-Angle', which is a criterion for triangle congruence stating that if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, the triangles are congruent.

The distance formula is given by $$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$ .

An angle is formed by two rays (sides of the angle) that share a common endpoint (the vertex of the angle).

The sum of the interior angles of a triangle is always 180 degrees.

Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.

A right angle is an angle that measures exactly 90 degrees.

Supplementary angles are two angles whose measures add up to 180 degrees.