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2nd Sem. Vocab (7th)

2nd Semester Math Vocab (7th)

TermDefinition
Circumference The distance around a circle.
Complementary Angles Two angles whose measures add to 90°.
Composite Figure A figure made up of simple geometric shapes.
Experimental Probability The ratio of the number of times an event occurs to the total number of trials, or times that the activity is performed.
Inverse Operations Operations that undo each other: addition and subtraction, or multiplication and division.
Markup The amount of increase in a price.
Percent Change The amount stated as a percent that a number increases or decreases.
Pi (π) The ratio of the circumference of a circle to the length of its diameter; Amount is roughly 3.14.
Probability A number from 0 to 1 (or 0% to 100%) that describes how likely an event is to occur.
Proportional Relationship A relationship between two quantities in which the ratio of one quantity to the other quantity is constant.
Radius A line segment with one endpoint at the center of a circle and the other endpoint on the circle, or the length of that segment.
Sales Tax A percent of the cost of an item that is charged by governments to raise money.
Supplementary Angles Two angles whose measures have a sum of 180°.
Surface Area The sum of the areas of the faces, or surfaces, of a three-dimensional figure.
Theoretical Probability The ratio of the number of ways an event can occur to the total number of equally likely outcomes.
Vertical Angles A pair of opposite congruent angles formed by intersecting lines.
Created by: jkuecker
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