GEOMETRY FINAL

Triangle Territory

100

This is the total number of degrees in the interior angles of any triangle

180

200

These are the three line segments that form the triangle.

sides

300

This is the point where the two sides of a triangle meet.

vertex

400

In this triangle none of the sides are of the same measure

scalene

500

Triangle with at least 2 congruent sides

Iscosceles

Triangle connections

100

This point is the intersection of the three medians of a triangle and is also the triangle's center of mass.

centroid

200

The point where the three angle bisectors of a triangle meet.

incenter

300

This is the term for a line drawn from a vertex perpendicular to the opposite side (or the line containing it)

altitude

400

    ***  TRIPLE ***

The three perpendicular bisectors of a triangle's sides intersect at this point, which is equidistant from all three vertices.      

circumcenter

500

In any triangle, this point of concurrency is where all three altitudes meet, and it may lie inside, outside, or on the triangle.

orthocenter

Quest 4 Quads

100

This four-sided shape has opposite sides parallel and equal in length.

Parallelogram

200

A quadrilateral with all sides equal and all angles equal to 90 degrees is called this.

square

300

This type of quadrilateral has only one pair of parallel sides.

Trapezoid

400

The sum of the interior angles of any quadrilateral is this many degrees.

360

500

This special quadrilateral has opposite sides equal, opposite angles equal, and diagonals that bisect each other at right angles.

rhombus

Not Congruent but.

100

~ symbol means this for triangles

similar

200

an equation stating that two ratios are equal

proportion

300

In similar figures sides are 

proportional

400

In similar figures the corresponding angles are

congruent

500

   *** DOUBLE ***

the ratio of 2 corresponding sides of similar figures

scale factor

Grab Bag

100

This special triangle has exactly 3 angles that are 60 degrees.

Equiangular

200

This quadrilateral has four right angles but does not require all sides to be equal.

rectangle

300

This segment connects the midpoint of two sides of a triangle and is parallel to the third side.

midsegment

400

If Triangle A ~ Triangle B and the ratio of their sides is 2:3, then the perimeter of Triangle A compared to Triangle B will be in this ratio.

2:3

500

   ***  DOUBLE ***

the values of the proportion that are furthest apart when written in ratio form using a colon. For example: In the proportion a : b = c : d, 'a' and 'd'

extremes