CBSE Class 10-Mathematics: Chapter –7 Coordinate Geometry Part 6
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Question 8:
In what ratio is the line segment joining the points and divided by the ?
Answer:
Let and
and ratio be

In What Ratio is the Line Segment
Coordinate of P are
Question 9:
For what value of are the points and collinear?
Answer:
For Collinear
Question 10:
Find the third vertex of a , if two of its vertices are at and and the centroid is at the origin.
Answer:
Let third vertex of the be
Hence, third vertex is
Question 11:
In a seating arrangement of desks in a classroom, three students are seated at and respectively. Are they seated in line?
Answer:
Hence, they seated in a line.
Question 12:
Show that are the vertices of an equilateral triangle.
Answer:
Let
Since , then is equilateral triangle.