Coordinate Geometry | Class 10 Chapter 7 | Coordinate Geometry Class 10 Full Chapter | Ex 7.1, 7.2

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In this video we are going to explain Coordinate Geometry of class 10. So stay tune with us........ Class 10 I Mathematics I
Some useful points :
1.In questions relating to geometrical figures, take the given vertices in the given order and proceed as indicated.
(i) For an isosceles triangle - We have to prove that at least two sides are equal.
(ii) For an equilateral triangle - We have to prove that three sides are equal.
(iii) For a right -angled triangle - We have to prove that the sum of the squares of two sides is equal to the square of the third side.
(iv) for a square - We have to prove that the four sides are equal, two diagonals are equal.
(v) For a rhombus - We have to prove that four sides are equal (and there is no need to establish that two diagonals are unequal as the square is also a rhombus).
(vi) For a rectangle - We have to prove that the opposite sides are equal and two diagonals are equal.
(vii) For a Parallelogram - We have to prove that the opposite sides are equal (and there is no need to establish that two diagonals are unequal sat the rectangle is also a parallelogram).
2. for three points to be collinear - We have to prove that the sum of the distances between two pairs of points is equal to the third pair of points

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