Answer:
[tex]5+5\sqrt{2}[/tex] hopefully I am correct because I'm bad at geometry
Step-by-step explanation:
If the edge of a stop sign is 10 inches, then the radius of the drum would be the hypotenuse of the edge divided by the square root of 2 multiplied by 2. Then you add 10, and divide the result by 2. The answer should be the radius.
The diameter of the drum would be [tex]10+10\sqrt{2}[/tex], so the radius would be [tex]5+5\sqrt{2}[/tex]
Hopefully I am correct i'm bad at geometry