Find length of arc, Find radius of circle, Word problems to find length, Hindi, Urdu, Class 11& 12

This video explains in detail how to find the length of an arc and how to determine the radius of a circle when certain values are given. The lesson begins with a clear explanation of what an arc is and how the central angle of a circle helps in measuring the portion of the circumference. You will learn how to use the arc length formula correctly and how to convert angles into radians when required, which is an essential step for solving problems accurately.

The video also covers how to reverse the process: if the arc length and angle are known, how to calculate the radius of the circle. Each step is explained slowly and simply so that students can follow without confusion. The lesson includes carefully selected word problems taken from common exam patterns, helping students understand application-based questions rather than just memorizing formulas.

This topic is important because it forms the foundation for advanced concepts in trigonometry, geometry, and physics, especially where circular motion and curved paths are involved. By practicing the methods shown in this video, students will be able to confidently approach exam questions and understand the real-world meaning of arcs and circle measurements.

The goal of this lesson is to build concept clarity, reduce mistakes, and make students comfortable with both direct and indirect formula-based questions. After watching this video, students will be able to calculate arc length, convert angles, and determine radius with confidence and accuracy.
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