# CBSE Class 10-Mathematics: Chapter – 7 Coordinate Geometry Part 21 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 11**:

are the vertices of a is the mid-point of BC and P is a point on AD joined such that find the coordinates of P.

**Answer**:

Let are the vertices of is the mid-point of BC

Coordinate of

i.e.. ,

Coordinate of P are

**Question 12**:

The coordinates of the vertices of are . Given that the area of is 12, find the value of K.

**Answer**:

But area of

If

Value of

**Question 13**:

Find the lengths of the medians of the triangle whose vertices are

**Answer**:

Coordinates of points D, E and F are

i.e..

Length of the median AD

Length of the median BE

And length of the median CF