Question

Penelope is painting huge circles on her bedroom

walls! She wants one of the circles to be ½ purple and ½
yellow. The diameter of the circle is 121 inches. She tells
her dad to measure 61 inches from the edge of the circle
to find the middle of the circle. Is this correct? Please
explain your answer with math.

Answer 1

the answer is 60.5 because if you divide 121 by 2 to get the radius you get 60.5

Answer 2

no it needs to be 60.5, because 121/2=60.5

not 61