GM7 Topic 10 Vocab

Two angles that share a common side and have the same vertex.

• composite figure

• cross section

• vertical angles

• adjacent angles

Two angles whose sum is 90 degrees.

• adjacent angles

• composite figure

• supplementary angles

• complementary angles

A line segment that passes through the center of a circle and has endpoints on the circle.

• radius

• vertical angles

• scale drawing

• diameter

A line segment with one endpoint at the center of a circle and the other endpoint on the circle.

• radius

• scale drawing

• diameter

• circle

The ratio of two corresponding lengths in two similar figures.

_{(Similar figures are figures that have the same shape but not necessarily the same size).}

• scale drawing

• cross section

• scale factor

• PI (π)

The combination of two or more figures into one object.

• composite figure

• vertical angles

• adjacent angles

• cross section

Opposite angles formed by the intersection of two lines. These angles are congruent.

• adjacent angles

• vertical angles

• parallel lines

• complementary angles

A set of points in a plane that are a fixed distance from the center.

• circle

• diameter

• PI (π)

• radius

The ratio of a circle's circumference, C, to its diameter, d.

• cross section

• circle

• scale factor

• PI (π)

Having the same measure.

• diameter

• cross section

• circle

• congruent