The radius of a circle is always half it's diameter. In this circle, the diameter is 41 centimeters, so the radius would be half of that- which is 41/2 or 20.5 cm.
<em>Hello There the correct answer is r=41/2
</em>
<h2> Explanation:</h2>
All you have to do is divide the diameter, in this case 41, by 2 because the radius of the circle is half of the diameter. So, the answer would be 20.5 cm Hope It Helps!
