Acute angles in a right triangle

Author:
Chi Tran, Irina Boyadzhiev
Drag the green vertices to the vertex of the right triangle.
  • What is the sum of the acute angles in a right triangle?
  • What is the sum to all angles in a right triangle?
To change the triangle to a different right triangle click the blue button “New Triangle” and drag the blue vertices. Then click the “Fold” button and drag the vertices.

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