railway RRB Technician Grade 1 Mock Test 2024 Quantitative Aptitude Geometry Circles, Chords and Tangents
In a circle with center O, the diameter AB extended to the point C, outside the circle. CD is a tangent at the point D on the circle. If the radius of circle is 6 cm and ∠DBC = 120°, then the length of CD is equal to:
1
6√3 cm
2
5√3 cm
3
3√3 cm
4
4√3 cm