Welcome to our Class 9 Mathematics series! In this video, we will solve Exercise 8.1 Question 3 from Chapter 8 – Quadrilaterals (NCERT Book). 💡 Topics Covered: ✔️ Properties of Parallelogram ✔️ Relation between Angles of Parallelogram ✔️ How to Prove a Parallelogram is a Rectangle 📘 Class: 9 📗 Chapter: 8 Quadrilaterals 📕 Exercise: 8.1 Question 3 📚 Board: CBSE / NCERT 👇 Watch till the end for a step-by-step easy explanation and geometry tips for Class 9 students. 🔔 Subscribe for more videos on Class 9 Maths, Class 10 Maths, and Geometry lessons! #class9maths #quadrilaterals #ncertmaths #mathsclass9 #class9geometry #exercise8_1 #rectangleproof #parallelogram #cbsemaths #mathswithconcepts #geometryforclass9 #ncertsolution #mathsteacher #learnmaths #class9mathschapter8