prove Pythagoras theorm
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: In any right angled triangles, the square of the hypotenuse of that triangle will always be equal to the sum of the squares of other two sides.
XYZ is a rt. angled triangle with <Y a right angle and its hypotenuse (XZ) is "a", height (XY) is "b" and base (YZ) is "c"
a² = b² + c²
A square PQRS is constructed with all its sides equal to (b+c). Inside it, a tilted square EFGH is drawn whose all sides are equal to 'a'.
Area of square EFGH = a²
Area of all four right angled triangles formed = 4 × 1/2 × b × c = 2 bc
Area of square PQRS = (b+c)²
Area of square PQRS = Area of square EFGH + Area of four rt. angled triangles
= a² + 2 bc
By condition,
(b+c)² = a² + 2bc
Or, b²+2bc+c² = a²+2bc
Or, a² = b²+c² [PROVED]
THIS IS THE MOST EASY WAY TO PROVE PYTHAGORAS THEOREM.
XYZ is a rt. angled triangle with <Y a right angle and its hypotenuse (XZ) is "a", height (XY) is "b" and base (YZ) is "c"
a² = b² + c²
A square PQRS is constructed with all its sides equal to (b+c). Inside it, a tilted square EFGH is drawn whose all sides are equal to 'a'.
Area of square EFGH = a²
Area of all four right angled triangles formed = 4 × 1/2 × b × c = 2 bc
Area of square PQRS = (b+c)²
Area of square PQRS = Area of square EFGH + Area of four rt. angled triangles
= a² + 2 bc
By condition,
(b+c)² = a² + 2bc
Or, b²+2bc+c² = a²+2bc
Or, a² = b²+c² [PROVED]
THIS IS THE MOST EASY WAY TO PROVE PYTHAGORAS THEOREM.
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