Calculating Unknown Angles
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Calculating Unknown Angles
Angle-finding at the skate park
The ramps and rails at a skate park create useful angle puzzles.
Designing a triangular ramp
A triangular ramp has interior angles that add to 180°.
Checking a four-sided design
The interior angles in any quadrilateral add to 360°.
Angle clues in a parallel-rail puzzle
Two parallel rails are crossed by a straight support. Corresponding angles are equal, and adjacent angles on a straight line add to 180°.
3 printable pages
Page 1
Page 2
Page 3
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