# NCERT Maths Solutions Class 11th Chapter 10 Straight Lines Exercise

## NCERT Solutions Maths Chapter 10 Conic Sections Class 11 PDF Download

Achieving full marks in Mathematics is attainable with the right study materials. Chapter 10 of the NCERT Class 11 Maths textbook covers Conic Sections, which includes Ellipses, Parabolas, Circles, and Hyperbolas. While these concepts might initially seem challenging due to their numerous equations and complex methods, the Conic Sections Class 11 Solutions offer excellent support in mastering these topics.

### NCERT Solution for Class 11 Maths Chapter 10 Exercise 10.1

### Ex 10.1 Class 11 Maths Question-1

Draw a quadrilateral in the Cartesian plane, whose vertices are (-4, 5),(0, 7), (5, -5) and (-4, -2). Also, find its area.

**Ans:**

Let ABCD be the given Quadrilateral with vertices A(-4, 5), B(0, 7), C(5, -5) and D(-4, -2).

Then, by plotting A,B,C and D on the Cartesion plane and joing AB,BC,CD and DA the given quadrilateral can br drawn as

### Ex 10.1 Class 11 Maths Question-2

The base of an equilateral triangle with side 2a line along they y-axis such that the point of the base is at the origin. Find vertices of the triangle.

**Ans:**

Let ABC be the given equlateral triangle with side 2a.

Accordingly, AB = BC = CA = 2a

Assume that base BC lies along the y-axis such that the of BC is at the arigin.

i.e, BO = OC = a, where O is the Origin.

Now, it is clear that the coolrdnates of point C are (0, a), while the coordinates of point B are (0, -a).

Noit is clear that line joing a vertex of an equiral tringle with the mid-poing of its opposite side is perpendicular.

Hence, vertex Alies on the y-axis

### Ex 10.1 Class 11 Maths Question-3

Find the distance between P(x _{1} Y_{1}) and Q(x_{2},y_{2}) when ; (i) PQ is parallel to the y-axis,(ii) PQ is parallel to the x- axis.

**Ans:**

The given points are P(x_{ 1},y_{1}) and Q(x_{2},y_{2}).

(i) When PQ is parallel to the y-axis, x _{ 1} = x_{2}.

In this case, distance between P and Q=

(ii) When PQ is parallel to the x-axis, y_{1} =y_{2}.

In this case, distance between P and Q =

### Ex 10.1 Class 11 Maths Question-4

Find a point on thex-axis, which is equidistant from the point (7,6)and (3,4).

**Ans:**

Let (a,0) be the point on the x axis that is equidistant from the points (7,6) and (3,4).

### Ex 10.1 Class 11 Maths Question-5

Find the slope of a line, which passes through the origin, and the mid-point of the line segment joining the points P(0, -4) and B (8,0).

**Ans:**

The coordinates of the mid â€“point of the line segment joining the points P(0, -4) and B(8,0) are

It is known that the slope (m) of a non â€“vertical line passing through the points (X _{1},Y_{1} and (X_{2,Y2) is given by }

Therefore, The required slope of the line passing through (0,0) and (4,-2) is

Hence, the required slope of the line is