Respuesta :

Answer:

12.5cm

Step-by-step explanation:

the figure appears to be a circle centered around point B, wherein segment CB is a radiai and segment DF is a diameter.

radiai(radius plural) are known to be 1/2 the length of diameters

(1/2) × 25 = 12.5

Answer:

12.5

Step-by-step explanation:

DF=25

CB=12.5

because line CB is half of line DF