CUET Preparation Today
Tangent drawn from a point X, touches the circle at U. O is the centre of this circle. If XU = 15 cm and OU = 8 cm, then what is the value of OX? |
12 cm 19 cm 21 cm 17 cm |
17 cm |
We know that , Radius touches tangent UX at 90º By using pythagoras theorem, h² = b² + p² OX² = OU² + UX² OX² = 8² + 15² OX² = 64 + 225 OX² = 289 OX = 17 cm |
