# CBSE Class 10-Mathematics: Chapter –7 Coordinate Geometry Part 3

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**Question 12:**

The distance between and Q is . The value of a is

(a)

(b)

(c)

(d)

**Answer:**

(c)

**Question 13:**

On which axis point lie

(a) x-axis

(b) y-axis

(c) Both

(d) None of these

**Answer:**

(a) x-axis

**Question 14:**

The distance of the point from the origin is

(a)

(b)

(c)

(d)

**Answer:**

(b)

**Question 15:**

The coordinates of the mid-point of the line segment joining is

(a)

(b)

(c)

(d)

**Answer:**

(a)

**Question 16:**

Two vertices of a are and . If the coordinates of its centroid be then the coordinates of the third vertex C is

(a)

(b)

(c)

(d)

**Answer:**

(c)

**Question 17:**

The abscissa of every point on y-axis is

(a)

(b)

(c)

(d)

**Answer:**

(a)

**Question 18:**

The ordinate of every point on -axis is

(a)

(b)

(c)

(d)

**Answer:**

(c)