If three straight lines intersect each other at the same point then the straight lines are called………….. , 7 | angle...

If three or more straight lines passing through the same point P then the lines are called

If two straight lines intersect each other,prove that the ray opposite to the bisector of one of the angles thus formed bisects the vertically opposite angle.

Pair of straight lines perpendicular to each other are represented by

If two straight lines intersect each other in such a way that one of the angles formed measures 90^(@) , show that each of the remaining angles measures 90^(@) .

Which of the following three points represent a straight line?

If three or more points does not lie on the same straight line the points are called -

Angle between pair of straight line

What is the equation of the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10 ?

Find the equation to the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10