Congruent Sides & Angles in △s: Exploration

Tim Brzezinski, 2026/08/12

Congruent sides and angles in △s: Thinking Classroom Exploration


  • 1. Part 1
  • 2. Part 2
  • 3. Part 3
  • 4. Part 4
  • 5. Part 5
  • 6. Extension

1.

Part 1

Move the vertices of this triangle around. Note the length of the bold side doesn't change. Then use the ANGLE tool to measure the triangle's angles.
Move the vertices of the triangle around. Note the measure of the colored angle doesn't change as you do. Use the DISTANCE (cm) tool to measure the 3 sides of this triangle.
– Tim Brzezinski

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