Triangle Tiling

Drag triangles into place to make patterns. You can rotate a triangle by 180 degrees by clicking on it.

Can you make a pattern that has parallel lines in it?

Can you make a pattern that has vertical angles in it?

Can you show that the internal angles of the triangle add up to 180 degrees?

Can you make a similar triangle with sides that are twice as long as the sides of the tiling triangle? Is it twice as big?

Angles

1. Angles and Fraction Circles
2. Angles and Twelfths
3. Angles and Clock
4. Fraction Circles and Clock
5. Angles and Protractor
6. Supplementary Angles Add Up to 180
7. Half Circle Protractor
8. Measure Supplementary Angles
9. How to Name Angles
10. Supplementary Angle Puzzles
11. Connect the Dots: Angles
12. Complementary Angle Puzzles
13. Angle Bisector Puzzles
14. Vertical Angle Puzzles
15. Triangle Tiling
16. Guess the Angle

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