Circle
Q.Find the equation of circle which passes through the centre of the citcle x2 y2 8x 10y-7=0 and is concentric with the circle 2x2 2y2 8x-12y-9=0
14. Find the area of the triangle formed by joining the mid-points of the sides of the triangle whose vertices are (0, –1), (2, 1) and (0, 3). Find the ratio of this area to the area of the given triangle.