Study your flashcards anywhere!
Download the official Cram app for free >
 Shuffle
Toggle OnToggle Off
 Alphabetize
Toggle OnToggle Off
 Front First
Toggle OnToggle Off
 Both Sides
Toggle OnToggle Off
 Read
Toggle OnToggle Off
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
33 Cards in this Set
 Front
 Back
rhombus

a quadralateral whose sides are all equal and have two sets of parallel sides


rectangle

a quadralateral that has two sets of parllel sides and whose angles are all equal


square

a quadralateral whose sides and angles are all equal and has two sets of parallel sides


right angle

an angle that is exactly 90 degrees


acute angle

an angle that is less than 90 degrees


obtuse angle

an angle tha tis more than 90 degrees


midpoint of a segment

a point that is halfway between the two endpoints of a segment


angle bisector

a ray cutting an angle exactly in half so that the angle is equal on either side of the ray


parallel lines

two or more lines that never intersect on one plane


perpendicular liens

two lines that intersect at a 90 degree angle


pair of complementary angles

two angles whose measures add up to 90 degrees


pair of supplementary angles

two angles whose measures add up to 180 degrees


pair of vertical angles

two nonadjacent angles that share a vertex and are formed by two intersecting lines


linear pair of angles

two angles that share a common line and have the same vertex, formed by two lines


skew

lines that don't meet and are on different planes


diagnols of polygons

a segment that connects two onon adjacent vertexes in a polygon


equilateral polygon

a polygon whose sides are all equal


equiangular polygon

a polygon whose angles are all equal


regular polygon

a polygon whose sides and angles are equal


right triangle

a triangle with one 90 degree angle


acute triangle

a triangle whose angles are all less than 90 degrees


obtuse triangle

a triangle with one angle more than 90 degrees


scalene triangle

a triangle with no equal sides


isosceles triangle

a triangle with two or more equal sides


median of a triangle

a segment coming form the vertex angle that divides the opposite side in half


altitude of a triangle

a segment connecting a vertex to the opposite side or the opposite side extended forming a 90 degree angle


trapezoid

a quadralateral witha pair of parallel sides


kite

a quadralateral with two pairs of equal sides adjacent to each other


parallelogram

a qudralateral with two pairs of non adjacent parallel lines


collinear points

two or more points on the same line


coplanar points

three or more points on the same plane


space

the set of all points


congruent

have the same measure
