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PSSA Vocabulary
Contributed by: Lukehart
__1. ChordA. A straight line connecting two points on a curve
__2. CircumferenceB. A line segment from the center to the edge of the circle
__3. DiameterC. A line through the center connecting 2 points on the outside
__4. Plane SectionD. The area created by a plane cutting through a solid
__5. RadiusE. The total area of the surface of a three-dimensional object
__6. Surface AreaF. The distance around the outside of a circle
__7. Adjacent AnglesA. Two angles that have a common side and a common vertex
__8. Complementary AnglesB. Two angles whose sum is 180º
__9. Supplementary AnglesC. Two angles whose sum is 90º
__10. Vertical AnglesD. Angles opposite each other when two lines cross
__11. Compound EventA. A selection that is chosen randomly (purely by chance)
__12. FrequencyB. The whole group from which a sample is taken
__13. ProbabilityC. How spread out or closely clustered a set of data is
__14. Random SamplingD. The chance that something will happen
__15. Sample PopulationE. How often something happens
__16. Simple EventF. One outcome or a collection of outcomes
__17. SimulationG. A diagram used to represent possible outcomes
__18. Tree DiagramH. Two or more things happening at once
__19. VariablilityI. The use of a mathematical model to recreate a situation
__20. Additive InverseA. An equation that states 2 ratios are equal
__21. Markup/MarkdownB. Another name for Reciprocal
__22. Multiplicative InverseC. A drawing similar to a larger
__23. Percent ChangeD. Same shape, same angles, same scale factor
__24. ProportionE. The # a shape's sides are multiplied by to get a similar
__25. Scale drawingF. The difference between two amounts ÷ by the original amount
__26. Scale FactorG. A percentage added on to a purchase amount
__27. SimilarH. An amount added to or subtracted from a purchase price
__28. Tax/CommissionI. What you add to a number to get zero
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