CUET Preparation Today
In the given figure
XYZ is a secant and ZT is a tangent. What is the value of x. |
9 5 8 7 |
5 |
We know that, PA × PB = PT2 We have, ZT = 6 cm, ZY = 4 cm and YX = x cm = ZX × ZY = ZT2 = 4 × (YZ + XY) = 62 = 4 × (4 + x) = 36 = 4 + x = 9 = x = 5 |
