Question Video: Deciding Whether Two Straight Lines Are Perpendicular or Parallel | Nagwa Question Video: Deciding Whether Two Straight Lines Are Perpendicular or Parallel | Nagwa

# Question Video: Deciding Whether Two Straight Lines Are Perpendicular or Parallel

Is π΄π΅ parallel or perpendicular to π΅πΆ?

01:10

### Video Transcript

Is line segment π΄π΅ parallel or perpendicular to line segment π΅πΆ?

First, letβs highlight line segment π΄π΅ there. And line segment π΅πΆ is here. Line segment π΄π΅ and line segment π΅πΆ share an end point, point π΅. This is an intersection. And we know that parallel lines never intersect.

Line segment π΄π΅ cannot be parallel to line segment π΅πΆ. We also know that, inside a rectangle, all four angles measure 90 degrees. The angle at their intersection is 90 degrees. And that confirms that line segment π΄π΅ is perpendicular to line segment π΅πΆ.

## Join Nagwa Classes

Attend live sessions on Nagwa Classes to boost your learning with guidance and advice from an expert teacher!

• Interactive Sessions
• Chat & Messaging
• Realistic Exam Questions