Respuesta :
let B be the intersect point with circle of center R
draw a circle with center B and radius ST
and make this congruent to R. I've attached the image as well
draw a circle with center B and radius ST
and make this congruent to R. I've attached the image as well

Answer:
In FLVS it is the third option
Step-by-step explanation:
Hope this helps :)