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Unit 7 Circles
Circle vocabulary 7th grade
Term | Definition |
---|---|
Area | the measurement attribute that describes the number of square units a figure or region covers |
Composite Figure | a figure that is composed of two or more two-dimensional figures |
Pi (π) | the ratio of the circumference to the diameter of a circle |
Polygon | a closed figure with at least 3 sides, where all sides are straight (no curves) |
Quarter circle | one-fourth of a circle |
Semicircle | half of a circle |
Two-dimensional figure | a figure with two basic units of measure, usually length and width |
Positive Rational Numbers | any positive number that can be expressed as the quotient or fraction p/q of two integers |
Radius | is the length of a line segment from the center of the circle to the outside of a circle. |
Diameter | A line segment that passes through the center of a circle and has endpoints on the circle |
Circumference | the distance around a circle |