Google Classroom구글 클래스룸
GeoGebra지오지브라 클래스룸

4.2 Angles in a Triangle

  1. In the space below, create a triangle.
  2. Drag each of your three vertices to make sure your triangle stays intact.
  3. Measure all three interior angles.
  4. Insert text that shows the sum of all three angle measures.
  5. Extra: Insert dynamic text where the angles measures will change value in your equation as you drag the triangle.