The Pythagorean theorem is named for the Greek mathemetician Pythagoras, although other cultures may have understood much about it before his time.

The formula says that if you square the measures of the two legs of a right triangle (the legs are on either side of the right angle) and add them together, that number will equal the square of the measure of the hypotenuse (the side opposite the right angle).

It can also be stated that in any right triangle, "the square of the hypotenuse equals the sum of the squares of the other two sides".

When written (with exponents used to indicate the squaring of the numbers):

a2 + b2 = c2

The pythagorean theorem states that in a right-angled triangle (i.e. a triangle with one of its three angles equal to 90 degrees), the square of the hypothenus side (i.e. the longest side which is directly opposite to the 90 degrees) is equal to the sum of the squares of the other two sides.

Let a, b and c represent the lenghts of the three sides of a right-angled triangle, and assuming that c is the lenght of the hypothenuse side (as defined above), then it follows that,

c^2=a^2+b^2 , assume the symbol ^ to mean 'raised to the power of'.

Pythagorean theorem is a relation in Euclidean

geometry between the three sides of a right-angled triangle. It is mentioned that In any right triangle, the area of the square whose side is the hypotenuse/ the side of the triangle opposite the right angle, is equal to the sum of the areas of the squares on the other two sides. Pythagoras Theorem is a theorem that was discovered by an expert named Pythagoras, and is associated with right-angled triangle.

Pythagorean Theorem is a theorem related to the geometry of right angled triangles. It states that the square of the hypotenuse of a right angled triangle equals the sum of the square of the other two sides.

...It is a formula that relates the length of two sides of a right triangle to the length of the hypotenuse (the side opposite the right angle). The formula itself is A^2 + B^2 = C^2

...For a right angle triangle the sum of the square of two shorter sides is equal to the square of the larger side

a^2+b^2=C^2