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Congruent Triangles

Sides and angles have the same size.

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Congruent Triangles
Teacher Contributed

Real World Congruent Triangles


How did the Egyptians build pyramids made up of perfect congruent triangles?

Read more about different theories:

Great Pyramid Mystery Solved

How the Egyptians built the Pyramids

Pyramids were made by hand?

Extension Investigation

  1. Students may investigate and discuss different theories on how the great pyramids were built.
  2. Activities with congruent triangles http://www.ehow.com/info_8430149_activities-congruent-triangles.html

Layering (optional)

Nova-Pyramids the inside story: http://www.pbs.org/wgbh/nova/pyramid/

Make a popsicle stick pyramid:



The Great Pyramid - Secrets in Plain Sight

Can JAM Project make ANYthing awesome? [Triangles AMV]


Egyptian Pyramids


  • Congruent triangles
  • Pyramids

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