Help please :) will mark brainliest

The radius should be:

  or

(Rounded to nearest hundredth if needed).

Step-by-step explanation:

-The formula:

-But if you are find the radius it would be:

-Use the circumference for the equation:

-Then, you solve the equation:

Then round up to the nearest hundredth (if needed):

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )