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adjacent sides

sides of a triangle that share a vertex

corresponding angles

Angles that have the same relative positions in geometric figures.

corresponding sides

Sides that have the same relative positions in geometric figures

equivalent ratios

Ratios whose fraction representations are equivalent. For instance, the ratios 3 to 4 and 6 to 8 are equivalent because 3/4=6/8.

image

the resulting figure AFTER a transformation is performed on it

Midpoint

if a line segment has a midpoint, then the 2 segments formed are congruent

nested triangles

Similar triangles that share a common angle. The smaller triangles fit entirely within the larger one.

proportion

An equation that states that two ratios are equal.

ratio

A comparison of two quantities, also know as fancy word for fraction.

rep-tile

A figure you can use to make a larger, similar version of the original.

scale drawing

An image of a figure that is similar to the original.

scale factor

the ratio of corresponding linear measurements of two similar figures

Similar

figures that have the same shape but not necessarily the same size; corresponding angles are congruent, but not necessarily corresponding sides

Corresponding Side

sides that have the same relative position in similar shapes

Equivalent Ratio

Ratios whose fraction representations are equivalent are called equivalent ratios. For instance the ratios 3 to 4 and 6 to 8 are equvalent because 3/4=6/8

Square

P=s+s+s+s

Square Root

when multiplying a number by itself to get a square number

acute triangle

A triangle with three acute angles.

obtuse triangle

A triangle with one obtuse angle.

Right Triangle

A triangle with one right angle.

isosceles triangle

Triangle with 2 equal sides and 2 equal angles.

Scalene Triangle

A triangle with no congruent sides

x-axis

The horizontal axis on a coordinate plane.

y-axis

The vertical axis on a coordinate plane.

coordinate plane

A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.

origin

The centre point of a number line (ground floor of a hotel, freezing point on a thermometer)

horizontal line

Slope of zero

vertical line

Straight up and down line (height)

coordinate pair

A pair of numbers telling where a point lies on a graph it is always (x,y)

(+,+)

quadrant I

quadrant II

negative, positive

(-,-)

quadrant III

Quadrant IV

positive, negative

equilateral triangle

Triangle with a 90° angle

rate

* multiplication

imposter

one that assumes false identity or title for the purpose of deception

non-similar figure

figures or images that are not alike. There shapes, sizes, and angles are different.