Two lines formed by two perpendicular line segments are also perpendicular.

In the given figure, $AB\parallel CD, \angle ABO=40°$ and $\angle CDO=35°$. Then the value of $x$ will be

The wheels of a car are of diameter $80 \mathrm{c}\mathrm{m}$ each. How many complete revolutions does each wheel make in 10 minutes when the car is traveling at a speed of $66 \mathrm{k}\mathrm{m}$ per hour? $\left(\mathrm{use} \pi =\frac{22}{7}\right)$

Only one circle can be drawn through three non collinear points.

Name the pair of lines [Parallel Lines / Perpendicular Lines / Skewed Lines] of the figure:

Perpendicular lines are lines that intersect to form an angle of _____.

In the given figure, if $AC\perp BD$, then name all the right angles.

A pair of adjacent edges of a cuboid are prependicular.

Name the pairs of lines of the following figure: (Perpendicular lines/ parallel lines)

If a line j is in a plane and there is a point B on j, then how many lines in that plane are perpendicular to j at B?

What are the symbols for perpendicular lines?

Check whether the model is perpendicular lines or not:

The adjacent edges of a tabletop.