Question 1020759

The radius of a circular cricket field is 60m. M and N are the ends of a diameter of the field. To walk from M to N, about how much further is it to walk around the boundary than straight across the field?

Clear explanation, thanks so much!
<pre>Diameter: 2(60), or 120 m
Semi-circumference: {{{(1/2) * pi * 120}}}, or {{{60pi}}}
Difference: {{{highlight_green(matrix(1,5,60 * pi - 120, m, or, 68.7956, m))}}}