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# Geometry Crossword

Across
A segment that passes through the center and has its endpoints on the circle.
An angle that measures more than 90°
A triangle with two equal length sides
a quadrilateral that has two pairs of adjacent sides congruent.
angles that measure exactly 180°
A triangle with all three sides of equal length
any polygon that is not regular.
A right triangle is the side of the triangle that is opposite to the right angle.
A location in space - a dot on a piece of paper
An angle that measures 90°
Down
A quadrilateral with four right angles.
a proven fact. A theorem about right triangles must be true for every right triangle; there can be no exceptions. Just showing that an idea works in several cases is not enough to make an idea into a theorem.
A triangle with all three sides with different lengths
An angle that measures less than 90°
a quadrilateral with one pair of parallel sides and congruent base angles, or it is a trapezoid with congruent base angles.
a triangle with two equal sides.
Part of a line between two points
A rigid motion, meaning an object changes its position but not its size or shape. In a translation, an object is moved in a given direction for a particular distance, therefore usually described by a vector, pointing in the direction of movement and with the appropriate length, the object changes its location, but not its orientation.
Connects two points via the shortest path and continues indefinitely (forever) in both directions
a half a line. It has a point on one end, and it extends infinitely in the other direction.