11)find the ratio in which the point (2,y) divides the line segment joining the points A(-2,2) and B(3,7).Also find the value of y.
12)find the area of the triangle formed by joining the midpoints of the sides of the triangle whose vertices are (0,-1),(2,1) and (0,3).
13)the line joining the pts (2,-1) amd (5,-6) is bisected at P.If P lies in the line 2x+4y+k=0 , find the value of k>
14)find the point on y-axis which is equidistant from the points (5,-2) and (-3,2) .
15)the line segments joining the points A(2,1) and b(5,-8) is trisected at the points P and Q such that P is nearer to A .If P also lies on the given by 2x-y+k=0 , find the value of k.
Asked by snisarulhaq | 2nd Dec, 2017, 02:47: PM
Same question as of 12th already been answered. Please check the above link.
Answered by Sneha shidid | 2nd Dec, 2017, 05:17: PM
- The midpoints of the sides BC, CA and AB of a ∆ABC are D(3,4),E (8,9) and F(6, 7) respectively. Find the coordinates of the vertices of the triangle.
- find the ratio in which the line segment joining A(2,-2)and B(-3,-5)is divided by the y axis.Also find the coordinates of the point of division.
- Determine the ratio in which the 2x + y = 4 divides the line segment joining the points (2,-2) and (3,7).
- Find the centroid of a triangle whose vertices are (x1,y1), (x2,y2), (x3,y3).
- The mid points D, E, F of the sides AB, BC, CA of a triangle ABC are (1, 2), (3, -1) and (5, 0). Find the coordinates of the vertices A, B, C of the triangle.
- Find the centroid of a triangle whose vertices are (1, 3), (2, 4) and (6, 5).
- Prove that the diagonals of a rectangle bisect each other and are equal.
- Find the ratio in which the line segment joining A(1, - 5) and B(- 4, 5) is divided by the x-axis. Also find the co-ordinates of the point of division.
- Points A(4, -1), B(6, 0), C(7, 2), D(5, 1) are the vertices of a quadrilateral ABCD. Find the coordinates of the mid-points of AC and BD. Give a special name to this quadrilateral.
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