Mathematics
Parallel lines
In this Class 9 Mathematics topic from Lines and Angles, students learn how to identify and represent parallel lines and understand how a transversal forms different angle pairs. They explore corresponding, alternate interior, alternate exterior, and co-interior angles, and use their relationships to determine unknown angles. The topic also develops skills in applying angle properties, checking whether lines are parallel, and explaining solutions through clear geometric reasoning and simple proofs.
Topic overviewटॉपिक का परिचय
Concept revisionअवधारणाओं का पुनरावर्तन
If a transversal cuts two parallel lines, then how are alternate interior angles?
When a transversal intersects two parallel lines, the alternate interior angles formed between the two lines on opposite sides of the transversal are equal. Therefore, the correct answer is Equal.