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GeoGebraGeoGebra Classroom

Equilateral Triangle

Directions

1. Create circle with center at point A and radius of length AB. 2. Create circle with center at point B and radius of length BA. 3. Put a point at intersection of circles. 4. Draw triangle ABC. 5. Measure each side and angle of the triangle.

What kind of triangle is this?

What did you notice about the lengths of the three sides of the triangle? What did you notice about the measurements of the three angles of the triangle?