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Math Vocabulary

This is the vocabulary essential for success in Math!

TermDefinition
Ratio Two numbers with something in common; can be compared and written as a fraction.
Dilation To enlarge something or make it smaller.
Scale Factor To make a shape or object large or small by multipying it by a number.
Similar Figure A shape or object that has the same proportions, but may be a different size.
Pentagon A five sided, two-dimensional shape.
Hexagon A six sided, two-dimensional shape.
Rectangle A four sided, two-dimensional shape with four right angles.
Triangle A three sided, two-dimensional shape.
Reflection To create a new shape by reflecting an image across a line; a mirror image.
Translation To move a shape a certain amount on a coordinate plane.
Transformation Movement of geometric figures to new points in a coordinate system using reflection (flip), translation (slide), or rotation (turn).
Rotation Turning a figure around a point, (center of rotation is point).
circle graph a graph used to compare parts of a whole. The circle represents the whole
common factor a number that is a factor of two or more numbers . Common factors of 2 and 8 are 1 and 2.
composite numbers numbers that have 3 or more factors
congruent figures with the same size and shape. Line segments that are equal in length
diameter the distance across a circle through its center
dividend the number being divided into equal groups
end point the point at one end of a line segment or ray
Created by: jrhigh
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