Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

math 7 vocab

geometry vocabulary test words

the set of all points in a plane that are the same distance from a given point circle
lines that lie in different planes that are neither parallel nor intersecting skew
a straight path that extends without end in opposite directions line
a flat surface that extends forever plane
a part of a circle named by its endpoints arc
the point where two sides intersect vertex
lines that intersect to form right angles perpendicular lines
a part of a line that starts at one endpoint and extends forever ray
an angle that measures less than 90 degrees acute angle
line segment with one endpoint at the center of a circle, the other endpoint on the circle radius
having the same size and shape congruent
a part of a line between two endpoints line segment
two angles whose measures add to 90 degrees complementary angles
an angle that measures 180 degrees straight angle
The part of a circle enclosed by two radii and an arc connecting them sector
a figure formed by two rays with a common endpoint angle
a pair of opposite congruent angles formed by intersecting lines vertical angles
an angle whose measure is greater than 90degrees but less than 180 degrees obtuse angle
a line segment that passes through the center of a circle and has endpoints on the circle diameter
an exact location in space point
two angles whose measures have a sum of 180 degrees supplementary angles
the point inside a circle that is the same distance from all points on the circle center of the circle
an angle that measures 90 degrees right angle
lines in a plane that do not intersect parallel lines
a line segment with endpoints on a circle chord
a line that intersects two or more lines transversal
An angle formed by two radii central angle
a closed plane figure formed by three or more line segments. polygon
A line bounding a geometric figure side
The point where two sides of a polygon intersect vertex of a polygon
a polygon in which all sides are congruent and all angles are congruent regular polygon
a triangle that has no congruent sides scalene triangle
a triangle that has at least 2 congruent sides isosceles triangle
a triangle with all sides congruent equilateral triangle
a triangle with all angles less than 90 degrees acute triangle
a triangle that has one obtuse angle obtuse triangle
a triangle that has one right angle right triangle
a quadrilateral with two pairs of parallel sides parallelogram
a parallelogram with all sides congruent rhombus
a parallelogram with 4 right angles rectangle
a rectangle with 4 congruent sides square
a quadrilateral with exactly one pair of parallel sides trapezoid
a quadrilateral with two pairs of adjacent congruent sides kite
A line segment that connects two non-adjacent vertices of a polygon diagonal
A rule stating that if three sides of one triangle are congruent to three sides of another triangle, the triangles are congruent. side-side-side rule
one-half is a mirror-image of the other half line symmetry
The imaginary “mirror” in line symmetry line of symmetry
Not identical on either side of a central line; not symmetrical asymmetry
A figure has rotational symmetry if it can be rotated less than 360° around a central point and coincide with the original figure rotational symmetry
The point about which a figure is rotated center of rotation
A change in size or position of a figure transformation
A figure resulting from a transformation image
A movement (slide) of a figure along a straight line translation
A transformation in which the figure is turned around a point rotation
A transformation of a figure that flips the figure across a line reflection
A line that a figure is flipped across to create a mirror image of the original figure line if reflection
a polygon with 3 sides triangle
a polygon with 4 sides quadrilateral
a polygon with 5 sides pentagon
a polygon with 6 sides hexagon
a polygon with 7 sides heptagon
a polygon with 8 sides octagon
a polygon with 9 sides nonagon
a polygon with 10 sides decagon
Created by: mschuster