Math 7 - Ch. 7
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Circle | The set of all points in a plane that are the same distance from a given point
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Skew Lines | Lines that lie in different planes that are neither parallel nor intersecting
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Line | A straight path that extends without end in opposite directions
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Plane | A flat surface that extends forever
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Arc | A part of a circle named by its endpoints
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Vertex | The point where two sides intersect
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Perpendicular Lines | Line the intersect to form right angles
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Ray | A part of a line that starts at one endpoint and extends forever
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Acute angle | An angle that measure less than 90 degrees
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Radius | Line segment with one endpoint at the center of a circle, the other endpoint on the circle
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Congruent | Having the same size and shape
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Line Segment | A part of a line between two endpoints
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Complementary Angles | Two angles whose measures add to 90 degrees
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Straight Angle | An angle that measure 180 degrees
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Sector | A region enclosed by two radii and the arc joining their endpoints
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Angle | A figure formed by 2 rays witha common endpoint
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Vertical Angles | A pair of opposite congruent angles formed by intersecting lines
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Obtuse Angle | An angle whose measure is great than 90 degrees but less than 180 degrees
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Diameter | A line segment that passes through the center of a circle and has endpoints on the circle
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Point | An exact location in space
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Supplementary Angles | Two angles whose measures have a sum of 180 degrees
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Center of a Circle | The point inside a circle that is the same distance from all points on the circle
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Right Angle | An angle that measures 90 degrees
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Parallel Lines | Lines in a plane that do not intersect
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Chord | A line segment with endpoints on a circle
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Transversal | A line that intersects two or more lines
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Central Angle | An angle with its vertex at the center of a circle
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Polygon | A closed figure formed by 3 or more line segments
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Side | A line bounding a geometric figure
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vertex of a polygon | The point where 2 sides of a polygon intersect
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Regular Polygon | A polygon with congruent sides and angles
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Scalene Triangle | A triangle with no congruent sides
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Isosceles Triangle | A triangle with at least two congruent sides
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Equilateral Triangle | A triangle with three congruent sides
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Acute Triangle | A triangle with all three angles measuring less than 90 degrees
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Obtuse Triangle | A triangle containing one obtuse angle
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Right triangle | A triangle containing a right angle
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Parallelogram | A quadrilateral with 2 pairs of parallel sides
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Rhombus | A parallelogram with all sides congruent
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Rectangle | A parallelogram with 4 right angles
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Square | A rectangle with 4 congruent sides
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Trapezoid | A quadrilateral with exactly one pair of parallel sides
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Kite | A quadrilateral with 2 pairs of adjacent congruent sides
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Diagonal | A line segment that connects two non-adjacent vertices of a polygon
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Side-side-side Rule | A rule stating that is three sides of one triangle are congruent to three sides of another triangle, the triangles are congruent
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Transformation | A change in size or position of a figure
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Image | A figure resulting from a transformation
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Translation | A movement (slide) of a figure along a straight line
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Rotation | A transformation in which the figure is turned around a point
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Reflection | A transformation of a figure that flips the figure across a line
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Line of Reflection | A line that a figure is flipped across to create a mirror image of the original figure
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Line Symmetry | One-half of a figure is a mirror-image of the other half
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Line of Symmetry | The imaginary "mirror" in line symmetry
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Asymmetry | Not identical on either side of a central line; not symmetrical
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Rotational Symmetry | A figure has rotational symmetry if it can be rotated less than 360 degrees around a central point and coincide with the original figure
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Center of Rotation | The point about which a figure is rotated
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
unverferth
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