Learn with Mentor · 8 min
Pythagoras' Theorem: Find the Perimeter
Find the missing side of a right-angled triangle with Pythagoras' theorem, then add all three side lengths for the perimeter.
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What are we learning?
A perimeter question asks for the total distance around the triangle. If one side is missing, find that side first with Pythagoras' theorem, then add the three side lengths.