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Introduction and Overview
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This lecture gives an introduction towards the concept of circles and its relevance in general aptitude examination. The topics to be covered as discussed along with the course structure. The previous year questions asked from circles for CSIR NET examination is covered.

## Shilpa Biju is teaching live on Unacademy Plus

Shilpa Biju
Experienced trainer for quantitative aptitude and reasoning for IBPS PO, RRB, CSIR NET etc, well versed in English.

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1. WELCOME TO UNACADEMY!! CSIR NET -CIRCLES: COMPLETE COURSE FOR GENERAL APTITUDE Shilpa Biju, EducaorAt Unacademy, Iuttps:lhunacademy.comhusershilpabiukjohncowses

2. LECTURE 1 INTRODUCTION AND OVERVIEW

3. THIS COURSE WILL HELP CSIR NET GATE .IBPS, SBI PO GOVT EXAMS PLACEMENT TESTS STD 12TH (ALL SYLLABI) STD 10H (ALL SYLLABI)

4. WHAT WE WILL DISCUSS DEFENITIONS PARAMETERS AND TERMS INSCRIBED SHAPES ARCS AND SECTORS PROPERTIES AND THEOREMS INSCRIBED ANGLE CYCLIC QUADRLATERAL

5. COURSE STRUCTURE .Basic Definitions All Formulas and Theorems Practical Applications .Sample Questions with Steps To Solve Previous Year Questions of CSIR ENT

6. JUNE 2018 CHEMICAL SCIENCES SET A a/2 CR 5 12 3. 4. 17. In the diagram, what is the ratio of the total shaded area (of the circle and semi- circle) to the total area of the square and the rectangle?

7. JUNE 2018 CHEMICAL SCIENCES SET A 20. Three semi-circles are drawn inside a big circle as shown in the figure. If the radius of the two identical smaller semi-circles is th of that of the big circle and the radius of the bigger semi-circle is twice that of the small semi-circle, what proportion of the big circle's area is shaded?

8. DEC 2017 CHEMICAL SCIENCES SETA 16. Three-quarters of a circle is shown in the figure; OA and OB are two radii perpendicular to each other. C is a point on the circle. What is angle ACB? 1. Cannot be determined 2. 30 3. 60 4. 45

9. JUNE 2017 LIFE SCIENCES SET A 15. Consider a circle of radius r. Fit the largest possible square inside it and the largest possible circle inside the square. What is the radius of the innermost circle? 1. r/v2 3. 4. r/2

10. NEXT LECTURE WHAT IS A CIRCLE