Question

Pls help I have no idea

Answer 1

Explanation:

If you connect the chord ends to the center you will see that you form a right triangle where:

`r^2=16^2+\left((9x-15)/(2)\right)^2\ and\ r^2=16^2+\left((7x+5)/(2)\right)^2\\ \\ </p><p>\text{From these equations we can see}\\ \\ (9x-15)^2=(7x+5)^2\\ \\ 9x-15=7x+5\\ \\ 2x=20\\ \\ x=10`