Respuesta :

Answer: D=13, R=6.5

Step-by-step explanation:

The diameter is the length of the whole circle. The radius is the length of 1/2 the circle.

That said,

the diameter is alreaday given because that line goes across the whole circle.

D= 13

R= 6.5

Now the radius is 1/2 the diameter. 1/2 of 13= 1/2x13= 6.5

Hope this helps :)) Braianliest would be appreciated thanks !!