Math Help

Line

One dimensional figure, has length but no width

Line segment

a part of a line that has two endpoints

Point

an exact location on a plane

PLane

a flat surface that has no thickness or edges

Coplanar

2 or more points that exist on the same plane

Collinear

points that lie on the same straight line or in a single line

Supplementary

two angles that add up to 180 degrees

complementary

Two angles whose sum is 90 degrees

Congruent

Having the same size and shape

Ray

a part of a line that starts at an endpoint and but doesn't have an endpoint

Angle Bisector

a ray that divides an angle into two equal parts

Midpoint

A point in the middle of a line segment

Angle

two rays with a common endpoint

Adjacent Angles

Two angles that share a common side and have the same vertex

Linear pair

a pair of adjacent, supplementary angles

Vertical Angles

Angles opposite each other where two lines cross

Equilateral

all sides same length

Isosceles

2 matching sides/ lengths

Scalene

no matching lengths or sides

acute

smaller than 90 degrees

obtuse

greater than 90 degrees

Equiangular

having all or corresponding angles equal

parallel

never intersect

perpendicular

a straight line that makes a right angles with another line

Skew lines

lines that are not parallel and do not intersect.