Question

What is XY? in meters

Answer 1

`color(blue)(20 "metres")`

Explanation:

The product of the segments `UX and XY` on the secant line `UY` equal the square on the tangent line `UV`

`:.`

`UX*XY=(UV)^2`

`5*XY=10^2`

`XY=100/5=20`

`XY` is 20 metres.