Angles, Triangles, and Lines
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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| What type of angle measures exactly 90 degrees? | Right
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| What type of angle measures exactly 180 degrees? | Straight
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| What type of angle measures less than 90 degrees? | Acute
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| What type of angle measures more than 90 degrees? | Obtuse
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| Which triangle has 1 right angle? | Right triangle
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| Which triangle has all acute angles? | Acute triangle
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| Which triangle has 1 obtuse angle? | Obtuse triangle
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| Which triangle has all equal sides? | Equilateral
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| Which triangle has 2 equal sides? | Isosceles
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| Which triangle has no equal sides? | Scalene
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| Part of a line with 2 end points. | line segment
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| Part of a line with 1 endpoint and goes on forever in the opposite direction. | ray
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| Lines that stay the same distance apart forever. | parallel
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| Lines that cross at 1 point. | intersecting
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| Lines that intersect and form a 90 degree angle. | perpendicular
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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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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:
thumble
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