Question

Find x in each image below. Simplify any radicals.

Answer 1

To Find :

The value of x.

Solution :

We know, when two chords intersect outside the circle.

`21* ( 21 + 45 ) = x * ( x+5x)\\\\1386 = 6x^2\\\\x^2 = 231\\\\x = √(231)`

Hence, this is the required solution.