Geometry Ch. 1 Tools of Geometry

An angle with a degree measure less than 90. pg. 32

Two angles that lie in the same plane, have a common side, but no common interior points. pg. 40

The intersection of two noncollinear rays at a common endpoint. The rays are called sides and the common endpoint is called the vertex. pg. 31

A ray that divides an angle into two congruent angles. pg. 35

The number of square units needed to cover a surface. pg. 51

Two parallel congruent faces are called bases, commonly found on a prism, which is a polyhedron. pg. 60

For any two points A and B on a line, there is another point C between A and B if and only if A, B, and C are collinear and AC + CB= AB. pg. 15 (see between)

The distance around a circle. pg. 51,555

Points that lie on the same line. pg.6

Two angles with measures that have a sum of 90. pg. 42

A polygon for which there is a line containing a side o the polygon that also contains a point in the interior o the polygon. pg.49

A solid with a circular base, a vertex not contained in the same plane as the base, and a lateral surface area composed of all points in the segments connecting the vertex to the edge of the base. p. 61

Having the same meassurement. pg. 15

A method of creating geometric figures without the benifit of measuring tools. Generally, only a pencil straightedge and a compass. pg.16

A polygom which ther is no line that contains botha side of the polygon and a piont in the interior of the polygon. pg.29