Teaching Rajasthan 3rd Grade REET Mains (Level I & II) Mock Test Quantitative Aptitude Geometry Circles, Chords and Tangents
From a point Q, the length of the tangent to a circle is 21 cm and the distance of Q from the centre 'O' of the circle is 29 cm. Find the radius of the circle.
1
20 cm
2
28 cm
3
30 cm
4
50 cm