Triangles & triangulation
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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| Triangles | There is one triangle in a triangle, so all of the triangles added together is 180°.
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| Rectangle/Square/Parallelogram | There is two triangles in a rectangle, so 180°+180°=360°. So, the area of all the angles in a rectangle is 360°.
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| Pentagon | There is three triangles in a pentagon, so 180°•3=540°. The area of all the angles in a pentagon is 540°.
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| Hexagon | There is four triangles in a hexagon, so 180°•4=720°. The area of
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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:
Joanne02468
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