# Geometry Final

## 43 terms · Words for vocabulary final

### linear pair

two angles that are both adjacent and supplementary

### conclusion

"then" part of a conditional statement

### trapezoid

quadrilateral with exactly one pair of opposite sides parallel

10 sided polygon

### inscribed

polygon whose vertices lie on the circle

8 sided polygon

### perpendicular

two lines that meet to form right angles

### theorem

statement that must be proven true

4 sided polygon

### angle bisector

segment that divides an angle into two congruent segments

### rhombus

parallelogram with four congruent sides

### postulate

statement assumed to be true

### congruent

two polygons having the same shape and size

### slope

ratio of rise over run

### isosceles

triangle with two congruent sides

### square

rectangle with four congruent sides

if and only if

### median

segment from any vertex of a triangle to the midpoint of the opposite side

5 sided polygon

### rectangle

parallelogram with four right angles

### parallelogram

quadrilateral with both pairs of opposite sides parallel

### altitude

segment from the vertex of a triangle perpendicular to the line containing the opposite side

### hypotenuse

longest side in a right triangle

### coplanar

points that lie in the same plane

### scalene

triangle with no congruent sides

### obtuse

angle measure between 90 and 180

### equilateral

triangle with all sides congruent

### right

triangle containing one right angle

### collinear

points that lie on the same line

### CPCTC

corresponding parts of congruent triangles are congruent

### similar

two polygons having the same shape

3 sided polygon

### circumscribed

each side of a polygon is tangent to the circle

### parallel

lines that lie in the same plane and do not intersect

### tangent

a line that intersects a circle at exactly one point

### diagonal

a segment joining two nonconsecutive vertices

### hypothesis

the "if" part of a conditional statement

### leg

sides of a right triangle

### midpoint

a point in the middle of two points

angles that have a common side and vertex