Question

The figure shows an aerial view of a playground. If David runs around the field three times, he covers a distance of ___yards.

Answer 1

The first thing we must do for this case is to find the perimeter of the figure.
 We have then that the perimeter is:
 P = ((35) * (280/180) * pi) + 45
 P = 216.04 yards.
 Then,
 As David runs the field three times then:
 d = 3 * P
 d = 3 * 216.04
 d = 648.12 yards.
 Answer:
 he covers a distance of 648.12 yards