Class 11 Maths NCERT Solutions Chapter 10 Straight Lines is developed and witten by our expert teachers. Students can study our solutions of Chapter 10 Straight Lines class 11 Maths, 1. Draw a quadrilateral in the Cartesian plane, whose vertices are (–4, 5), (0, 7), (5, –5) and (–4, –2). Also, find its area., 2. The base of an equilateral triangle with side 2a lies along the y-axis such that the mid-point of the base is at the origin. Find vertices of the triangle., 3. Find the distance between P (x1, y1 and Q (x2, y2) when : (i) PQ is parallel to they-axis, (ii) PQ is parallel to the x-axis. , 4. Find a point on the x-axis, which is equidistant from the points (7, 6) and (3, 4). , 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)., 6. Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and (–1, –1) are the vertices of a right angled triangle., 7. Find the slope of the line, which makes an angle of 30° with the positive direction of y-axis measured anticlockwise., 8. Find the value of x for which the points (x, – 1), (2,1) and (4, 5) are collinear. , 9. Without using distance formula, show that points (– 2, – 1), (4, 0), (3, 3) and (–3, 2) are the vertices of a parallelogram. , 10. Find the angle between the x-axis and the line joining the points (3,–1) and (4,–2). , 11. The slope of a line is double of the slope of
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