state gov MP Vyapam Group 4 (AG III & Steno) Mock Test Series 2025 Quantitative Aptitude Geometry Circles, Chords and Tangents
In the given circle, chord \(\overline {AB}\) is extended to meet the tangent \(\overline {DE}\) at D. If \(\overline {AB}\) = 10 cm and \(\overline {DE}\) 12 cm, what is the length of B̅D̅?
1
7 cm
2
8 cm
3
9 cm
4
\(2\sqrt {21} \;cm\)