The semi circles have a diameter of d=64.L=pi*width +2 length L=3.14(64)+2(80) L=361.06 m

answer is 361.06EXPLANATION:In the figure we can one rectangle and two semicircles. That is, clearly one rectangle and a circle.Here we have to find out the perimeter.Perimeter = circumference of the circle + 2 length of the rectangleNow, circumference= 2*pi*r = 2*pi*32 (r is half the width of the rectangle =64pi mTherefore, length of the track = 64pi +2*80 =361.06193 ~361.06 m