How can we help?

You can also find more resources in our Help Center.

17 terms

Absolutely Epic Geometry flash cards!

Geometry flash cards for my math class. (In my examples, this sign: < is supposed to be an angle sign)
STUDY
PLAY
Supplementary angles
Two angles whose sum is 180 degrees.
EX: <ACB + <BCD = 60 + 120 = 180 degrees.
Complementary angles
Two angles whose sum is 90 degrees.
Acute angle
An angle less than 90 degrees but more than 0 degrees.
Point
An exact location in space.
Obtuse angle
An angle whose measure is greater than 90 degrees, but less than 180 degrees.
Line
A straight path that extends without end in opposite directions.
Right angle
An angle that measures 90 degrees.
Ray
(mathematics) a straight line extending from a point
Plane
(mathematics) an unbounded two-dimensional shape
Vertical angles
a pair of opposite congruent angles formed by intersecting lines
Parallel lines
coplanar lines that do not intersect
Perpendicular lines
Two lines that intersect to form right angles
Acute Triangle
a triangle whose interior angles are all acute
Obtuse Triangle
a triangle with one obtuse angle
Equilateral triangle
a triangle with three congruent sides
Isosceles triangle
a triangle with two congruent sides
Scalene triangle
a triangle with no two sides of equal length

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.