CHAPTER 7 Coordinate geometry solution
COORDINATE GEOMETRY SOLUTION AND EXPLANATIONS FOR CLASS X Revision All the distances are measured from the origin "O" (0,0) In the first quadrant, x and y distances are positive, in the second quadrant, x is negative and y is positive, in the third quadrant, both x and y are negative, and in the fourth quadrant, x is positive and y is negative. Click here to access the special offer! Distance Formula Distance of A from the origin is x1 Distance of B from origin = x2 AB = x2-x1 AQ = y1 BP = y2 The distance between Q and P is obtained by using the Pythagorean formula QP is the required distance mentioned in the figure. This is not a quadrilateral. The given coordinates form a parallelogram Solve the (iv) part similarly. Solution 7: Solution 8: Given points are P and Q