math chapter 13
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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| Similar figures are? | They have the exact same shape but NOT the same size.
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| Congruent figures are? | =~ They have the exact same shape AND size.
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| Lines of symetry? | - Separates the figue into two matching halves.
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| Rotational symetry? | -Some figures can be turned less than 360 degrees and look exactly as it did before it turned.
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| Triangle? | -180 degrees all together.
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| Equilateral triangle? | -all sides and all angles congruent.
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| Isosceles triangle? | - 2 congruent sides 2 congruent angles.
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| Scalene triangle? | - No equal sides.
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| Pentagon? | - 5 sides and 5 angles
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| Hexagon? | - 6 sides,6 angles
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| Octagon? | - 8 sides, 8 angles
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| Regular pentagon? | - all sides and all angles are congruent.
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| Heptagon? | - 7 sides, 7 angles
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| Square? | - all sides and all angles are congruent =360 degrees.
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| Rectangle? | - all angles are congruent, 2 pairs of congruent sides.
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| Quadrilateral? | - 4 sides and 4 angles.
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| Parallelogram? | - 2 pairs of congruent sides and 2 pairs of congruent angles.
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| Rhombus? | - 4 equal sides, 2 pairs of congruent angles.
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| Angles? | 2 sides that share a common end point called the vertex.
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| Right angle? | 90 degrees
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| Straight angle? | Exactly 180 degrees.
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| Acute angle? | 89 degrees or less.
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| Obtuse angle? | Between 91 and 179 degrees.
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| Reflex angle? | Larger than 180 less than 360 degrees.
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| Complementary angles? | - two angles whose degrees equal exactly 90.
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| Supplementary angles? | - two angles whose degrees are exactly 180.
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| Adjacent angles? | - Share a common side.
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| Vertical angles? | - formed by a pair of lines that intersect.
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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.
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.
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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