Find the number of parellelogram formed if 10 parellel lines in a plane are intersected by a family of 12 parelled lines

Determine the number of parallelograms that can be formed from a set of 4 parellel lines intersecting another set of 5 parellel lines.

The number of parallelograms that can be formed from a set of 5 parallel lines intersecting another set of 4 parallel lines is

When two parallel lines are intersected by a transversal ,……. Angles are formed.

Observe the given figures and say which are intersecting lines and which are parallel lines.

Observe the given figures and say which are intersecting lines and which are parallel lines.

Observe the given figures and say which are intersecting lines and which are parallel lines.

Represent sqrt 10 on a number line.

In how many points do two lines intersect ?

There are n points in a plane. Find the number of straight lines that can be obtained by joining points if a) no three points are collinear. b) p points are collinear.