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Unit 1 Math 7

Proportional Relationships

TermDefinition
center a point that is the same distance from EVERY point on the circle
circle A 2 dimensional shape in which EVERY point is the same distance from the center.
circumference The distance around the OUTSIDE of the circle.
diameter A line segment that goes through the center of the circle.
complex fraction A fraction in which the numerator, denominator, or both is a fraction.
constant of proportionality The unit rate in a proportional relationship
Pi In a circle, the quotient circumference/diameter; common approximation is 3.14
proportional relationship The relationship between 2 quantities where 1 quantity is a constant multiple of the other quantity.
radius A line segment from the center of a circle to ANY point on the circle.
scale The ratio that tells the relationship between a length in a drawing/map/model and the actual length.
scale drawing A drawing in which the measurements correspond to the measurements of the actual object by the same scale.
scale factor A factor that relates the corresponding side lengths of a figure and a scale drawing of the figure.
Created by: soniawilliams200
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