Answer:
x = 49
Step-by-step explanation:
The segment inside the circle is an angle bisector , which divides the side opposite the bisected angle into segments that are proportional to the other two sides, that is
[tex]\frac{35}{25}[/tex] = [tex]\frac{x}{35}[/tex] ( cross multiply )
25x = 35 × 35 = 1225 ( divide both sides by 25 )
x = 49
