Advertisement Upgrade to remove ads

for the 1/21/2010 mr humphries math test

acute angle

an angle under 90 degrees

acute triangle

a triangle with all acute angles

angle

2 rays that share a common endpoint

central angle

angle that has the center of a circle its vertex

chord

a line segment that connects 2 points on a circle

circle

a set of points in a plane equidistant from a point called the origin or the center

complementary angles

2 angles that complete a right angle

congruent

having the same measure

diagonal

a line segment that connects 2 points not already connected

diameter

a chord that goes through the origin

equilateral triangle

a triangle that has all sides congruent

isosceles triangle

a triangle that has 2 sides congruent

scalene triangle

a triangle that has no sides congruent

kite

a quadrilateral with a pair of pairs of adjacent congruent sides

line

1-D a straight path that extends infinetly in opposite directions

line segment

a part of a line or ray that extends between 2 endpoints

obtuse angle

an angle over 90 degrees

obtuse triangle

a triangle with at least 1 angle over 90 degrees

parallel lines

lines that are on the same plane and never intersect

parallelogram

a quadrilateral with a pair of pairs of parallel lines

perpendicular lines

lines that intersect at a right angle

plane

2-D, 3 points can name it and it extends infinetly in all directions

point

0-D, an exact location in space

polygon

a closed figure made of three or more line segments

radius

1/2 of a diameter

ray

has 1 endpoint and extends infinetly in the other direction

rectangle

an equiangular figure

reflection

when a figure flips across the line of reflection

regular

equilateral and equiangular

rhombus

a parallelogram,quadrilateral with all sides congruent

right angle

angle at exactly 90 degrees

right triangle

a triangle with one right angle

rotation

when a figure turns around a fixed point

sector

wedge shape created by the central angle

skew lines

non collinear lines that don't intersect

square

equilateral and equiangular polygon

straight angle

a 180 degree angle

supplementary angles

supply a straight angle

transversal lines

intersect parallel lines

trapezoid

1 paip of parallel sides

vertex

a common endpoint for 2 line segments or rays or angles etc.

vertical angles

formed by two intersecting lines and are congruent

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set