Pythagorean Theorem Calculator

Welcome to our Pythagoras calculator! This page will allow you to find the missing side of a triangle, specifically the hypotenuse. 
CalculationInputs﻿﻿a
:3m​
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﻿﻿b
:4m​
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Output﻿﻿c
:5m​
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ExplanationPythagorean theorem fundamental geometric relationship between three sides of a right angled triangle. It states that the area of the square whose side is the hypotenuse (c) is equal to the sum of the areas of the squares on the other two sides (a and b). Given this relationship, we can derive an equation relating the lengths of the sides a, b and the hypotenuse c:
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a2+b2=c2a^2+b^2=c^2a2+b2=c2
Diagram references
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a=side onea=side\space onea=side one
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b=side twob=side\space twob=side two
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c=hypotenusec = hypotenusec=hypotenuse
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Any given right-angled triangle
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✍️ Algebraic proof
Additional ResourcesNeed a side other than the hypothenuse? Check this page out:
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Determine the Length Of a Side
Related ResourcesIf you liked this, check out our other articles and resources!
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Equilateral Triangle Calculator
Right Triangle Calculator
Triangle Angle Calculator
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