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The sum of the squares of the sides that include the right angle must equal the square of the hypotenuse (Pythagoras).

To construct a right angle triangle the three sides can have proportions of 3, 4 and 5 relative to one-another.

Example:

3 cm, 4 cm and 5 cm.

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12y ago
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Q: How do you figure a right angle on a triangle?
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