CBSE Class 10-Mathematics: Chapter –7 Coordinate Geometry Part 10

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Question 23:

Find the area of a rhombus if its vertices are and taken in order.

Answer:

Let A ,

Using Distance Formula to find length of diagonal AC, we get

Using Distance Formula to find length of diagonal BD, we get

Question 24:

Find the area of the triangle whose vertices are:

(i)

(ii)

Answer:

(i)

Area of Triangle

sq. units

(ii) Area of Triangle

3 Mark Questions

Question 1:

If are the vertices of a isosceles triangle, show that if

Answer:

Question 2:

Find the value of P if the point is equidistant from

Answer:

Let

(Given)