Which of the following shows two mutually perpendicular lines?

   

In figure below, state which line segment is the perpendicular bisector of the other?

In figure below, state which line segment is the perpendicular bisector of the other?

In figure below, state which line segment is the perpendicular bisector of the other?

In given figure, $AB\parallel CD$ and $JK, LM$ and $NO$ are the lines intersecting $AB$ and $CD$.

Name the pair of mutually perpendicular lines.

In given figure, $AB\parallel CD$ and $JK, LM$ and $NO$ are the lines intersecting $AB$ and $CD$.

Are the lines $AB$ and $CD$ perpendicular to each of the line $JK, LM$ and $NO$?

In given figure, $AB\parallel CD$ and $JK, LM$ and $NO$ are the lines intersecting $AB$ and $CD$.

Are $JK, LM$ and $NO$ parallel to each other? Give reasons.

Classify the following triangles on the basis of sides and angles.