Respuesta :

answer is 41
because the radius of a circle is half of the diameter of the circle .
therefore when solving you just multiple it by 2 . the equation for it is " D=2r "
louisariutta

Answer:

Step-by-step explanation:

Since 20.5 is half, to find the diameter, you need to multiply the radius times 2.

D=2r

diameter: 41