Q: What is the name of the theorem that states that 1 plus 2 equals 3 plus 4 equals 7 plus 8 equals 15 plus 16 equals 31?

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It is not a theorem. It is an equation for converting between temperatures measured on the Fahrenheit scale and the Centigrade or Celsius scale.

Pythagorean Theorem

2.5 + 3.4 Pythagorean Theorem?

A squared plus B squared equals C squared, where C is the hypotenuse of a right triangle and A and B are the other two sides is true and is one way of expressing the Pythagorean Theorem.

A Mathematician named Pythagorean. That is why it is called Pythagorean's theorem. For every right triangle, this theorem will be true.

This is called the Abel-Ruffini theorem.

you use A squared plus B squared equals C squared

Pythagoras' theorem for a right angle triangle.

Pythagoras. That's why it's called the Pythagorean Theorem.

i think its a^2(squared) plus b^2 equals c^2

Commutative

Do you mean a^2+b^2=c^2? If so, it is the Pythagorean theorem, which is used to find the length of the hypotenuse in a right triangle.

No, the pythagorean theorem only works on right triangles, but it will work on any right triangle. This is because the Pythagorean Theorem states that length of Leg A squared plus the length of Leg B Squared equals the length of the hypotenuse squared. A hypotenuse is always found opposite a right angle. Only right triangles have right angles; therefore, the Pythagorean Theorem only applies to right triangles. :D

Pythagoras, the Greek Mathematician. The Pythagorean theorem (P Theorem) ~ a2 + b2 = c2 Also used to find the hypotenuse of certain triangles.

Pythagoras' theorem in finding the lengths of the sides of a right angled triangle.

The Theorem of Pythagoras.

Addition is commutative.

it is the associative property

The property is identity property of addition. This property states that any number plus 0 equals that number. identity property of multiplication states that any number times 1 equals that number.

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One plus two equals 3. According to the Addition Theorem, the bi-equation "1+2" is the same as "1+1+1". And thus we have "1+2=3".

kleene's theorem state that those who defined fa

the person who came up with that is pythagoris, and it is called the pythagrian theorem.

Pythagorean theorem Look here for more information: http://en.wikipedia.org/wiki/Pythagorean_theorem