Unit 6: Circles and Composite Figures

The surface measurement of a two-dimensional figure. It is described in square units.

• area

• Pi

• diameter

• circumference

the distance around a circle

• area

• Pi

• diameter

• circumference

the ratio of the circumference to the diameter of a circle

• area

• Pi

• diameter

• circumference

a straight line that passes through the center of a circle; it has two endpoints on the circle

• area

• Pi

• diameter

• circumference

a two-dimensional figure formed by a closed curve with all points equal distance from the center

• circle

• composite figure

• parallelogram

• trapezoid

a figure that is composed of two or more two-dimensional shapes

• circle

• composite figure

• parallelogram

• trapezoid

a 4 sided two-dimensional figure with opposite sides parallel

• circle

• composite figure

• parallelogram

• trapezoid

a quadrilateral with only one pair of parallel sides

• circle

• composite figure

• parallelogram

• trapezoid

one-fourth of a circle

• Quarter Circle

• Radius

• Semicircle

• Decompose

the distance from the center of the circle to the outside edge

• Quarter Circle

• Radius

• Semicircle

• Decompose