What Is Pythagoras Theorem

What Is Pythagoras Theorem :A Brief Knowledge about Pythagoras theorem

What Is Pythagoras theorem?Pythagoras theory is a fundamental subject in arithmetic, which clarifies the connection between the different sides of a corner-based triangle. It is at times can be call the Pythagorean way of thinking. The recipe and evidence of this hypothesis are clarified here. This hypothesis is primarily utilized for the right-point triangle, through which we can draw an essential formula, an opposite equation, and a portrayal. How about we become familiar with this hypothesis in detail here.

A brief history

What Is Pythagoras Theorem

The hypothesis is regularly ascribed to the Greek mathematician Pythagoras (c. 570–495 BC) regardless of whether there is no proof that he was the first to demonstrate the hypothesis. Pythagorean hypothesis, likewise known by Babylonian and Chinese mathematicians before Pythagoras. It isn’t known whether the theory was found once or a few times in better places. 

The historical backdrop of the hypothesis is likewise connected to the disclosure of the Pythagoras set of three, which comprises of three emphatically right numbers, for example, 


The Babylonians found the Pythagorean sets of three, from 2000 to 1786 BC, in spite of the fact that they didn’t make reference to any triangles. 

Pythagoras or his followers manufactured the primary realized variable based math manual for the hypothesis and was commended by well-known authors, for example, Plutarch, and will stroll in to find this proof. This excellent connection between the different sides has along these lines been ascribed to him in a current triangle.

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Sources for this section: Wikipedia eng, Wikipedia swe 

Pythagoras theory  is a significant subject in science, which clarifies the connection between the different sides of a corner-based triangle. It is here and there called the Pythagorean theory. The equation and confirmation of this hypothesis are clarified here. This hypothesis is fundamentally utilized for the right-point triangle, through which we can draw an essential recipe, an opposite equation and a portrayal. We should become familiar with this hypothesis in detail here. 

What is a right angled triangle?

right angled scalene triangle

If a triangle has one 90° angle then it is a right angled triangle. The corner has  little square tells us it is a right angled triangle(I also put 90°, but you don’t need to!)

Pythagoras Theorem Statement

Pythagorean theorem communicates that “in the caught triangle, the planning side square equivalents the complete squares of different gatherings.” the sides of these triangles are called vertically, basely, and ligamental. Here, the agreement is the most drawn outside, since it mirrors the edge of 90 degrees. The sides of the right triangle (for example, x, y, and z) have positive right characteristics, when a square is set in a state, additionally called the Pythagoras gathering of three.

Pythagoras Theorem Formula

Let a given triangle above:

Where “a” is the perpendicular side,

“b” is the base,

“c” is the hypotenuse side.

According to the definition, the Pythagoras Theorem formula is given as:

Hypotenuse2 = Perpendicular2 + Base2 c2 = a2 + b2  

The side opposite to the right angle (90°)  is the longest side (known as Hypotenuse) because the side opposite to the greatest angle is the longest.

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Consider three squares of sides a,b,c mounted on the three sides of a triangle having the same sides as shown.

By Pythagoras Theorem –

Area of square A + Area of square B = Area of square C

Pythagoras Theorem Proof

 Pythagoras Theorem Proof

Given: A right-angled triangle ABC.

To Prove- AC2 = AB2 + BC2

Proof: First, we have to drop a perpendicular BD onto the side AC

We know, △ADB ~ △ABC







 (Condition for similarity)

Or, AB2 = AD × AC ……………………………..……..(1)

Also, △BDC ~△ABC







 (Condition for similarity)

Or, BC2= CD × AC ……………………………………..(2)

Adding the equations (1) and (2) we get,

AB2 + BC2 = AD × AC + CD × AC

AB2 + BC2 = AC (AD + CD)

Since, AD + CD = AC

Therefore, AC2 = AB2 + BC2

Hence, the Pythagorean theorem is proved.

Note: Pythagorean theorem is only applicable to Right-Angled triangles.

Frequently Asked Questions on Pythagoras Theorem

What is the formula for Pythagorean Theorem?

The formula for Pythagoras, for a right-angled triangle, is given by; c2=a2+b2

What is the formula for hypotenuse?

The hypotenuse is the longest side of the right-angled triangle, opposite to right angle, which is adjacent to base and perpendicular. Let base, perpendicular and hypotenuse are a, b and c respectively. Then the hypotenuse formula, from the Pythagoras statement, will be;

c = √(a2 + b2)

Can we apply the Pythagoras Theorem for any triangle?

No, this theorem is applicable only for the right-angled triangle.

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In this article, you will get a brief knowledge of What is Pythagoras theorem. And which triangle is suitable to apply this theorem. The given history of Pythagoras’ theorem, statement of the theory and the formula are beneficial for the students in math homework help.

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