RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 12. Circles

Subject: Maths - Class 10th

Q. No. 15 of Multiple Choice Questions (MCQ)

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In the given figure, AT is a tangent to the circle with center O such that OT = 4 cm and OTA = 30°. Then, AT = ?

In OAT ,

OA AT [Tangents drawn at a point on circle is perpendicular to the radius through point of contact]

OAT is a right - angled triangle at A and

AT = 2√3 cm

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