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ENGR215 Project Page in Progress
This page is a project page in progress by students in Engr215. Please refrain from making edits unless you are a member of the project team, but feel free to make comments using the discussion tab. Check back for the finished version on CHANGE THIS TO THE DATE OF FINALS WEEk.


Our client Ken, at the Redwood Discovery Museum located in Eureka asked our group to make a Pythagorean Theorem model that shows the proof that A squared plus B squared is equal to C squared. We completed this task by making an all acrylic model of a 3x4x5in right triangle with the areas attached to each side. We then filled up this model and dyed the interior color blue to fully enhance the theorem.


The Pythagorean Theorem is taught in every school, but our model displays physically how and where these numbers come from and mean.

Problem statement and criteria

Our groups goal is to help students understand and conceptualize the Pythagorean Theorem.

Description of final project

Photos and descriptions. Use gallery.


Project total cost: $71.00

Testing Results

We found that kids really like watching the water or material fall from two sides of the triangle to fill up the bottom one.

How to build

Once all acrylic is cut to size, use acrylic glue #14 to get watertight seals.


This is the maintenance section.


This is when to maintain what.


Check for leaking.


Continue to check for leakage.


Make sure model is clean, and not leaking.


Make sure there is no cracks or leaks.

Every 2 years

Add more water through unscrewing valve on back of the model.


To fill liquid inside model, first unscrew cap on back of model then fill with regular water.


Lower water level than usual: Unscrew valve on back of model, fill model with water

If acrylic cracks: Salvage as much as possible, and use acrylic glue #14 to re seal joints.

Discussion and next steps

If model is cracked past repair, a new model must be made. 

Suggestions for future changes

More labels could be added for more information on right triangles.