1.if the points A(1,2) , B (4,q),C(p,6),D(3,5) are the vertices of a parallelogram find values of p and q?

2. find the ratio in which the line segment joining points X(1,-5),Y(-4,5)is divided by x-axis?

3. if the coordinates of points A and B are (-2,-2) and (2,-4) find the coordinates of point X such that AX=3/7 AB and X lies on the line segment AB

4, find the area of the triangle formed by joining the mid points of tye sides of the triangle ABC whose vertices are A(0,-1), B(2,1),C(0,3) and find the ratio of this area to the ratio of the area of the given triangle

Que.1.

Here is the link for the answer to your query:

https://www.meritnation.com/ask-answer/question/if-a-1-2-b-4-y-c-x-6-and-d-3-5-are-the-vertices/coordinate-geometry/1469334

 

Que.2.

Here is the link for the answer to the similar query:

https://www.meritnation.com/ask-answer/question/fnd-the-ratio-in-which-the-line-segment-joining-2-3-and/coordinate-geometry/1612350

 

Que.3

For the answer to your query, Please go to our website:

http://cbse.meritnation.com/event/board-paper-solutions

you will get your answer in the solution of  All India Exam 2012 Section C(Q.26).

 

Que.4

 

Since Area (A1) of ∆DEF is–

 

and Area of ∆ABC (A2) is –

 

∴ The ratio of area of ∆ABC to the are of ∆DEF is –

  • 3

1. In a parallelogram, diagonals bisect each other. Therfore coordinates of MIDPOINT of AC = coordinates of MIDPOINT of BD. Use thise to find the answer.

2. The line segment XY is divided by a point on X axis. Therefore let the point be P (x , 0). Now use the y coordinate of P (ie 0) in the section formula and you will get the ratio.

3. AX = 3/7 AB ; therefore AX / AB = 3 / 7

AX =3 , AB = 7 therefore BX = 7-3 = 4

Therefore AX : BX = 3 : 4 . Now use section formula to find the coordinates.

4. FInd the area of triangle ABC. Find the midpoints of sides AB, BC and AC. Let them be D, E and F respectively. Find the area of triangle DEF. Find the ratio of triangle DEF to that of triangle ABC.

  • -4
What are you looking for?