An indoor running track has the dimensions shown. The ends of the track are semicircles. If the track is to be resurfaced, how many square feet of material will be required? The semicircle is listed at 34 ft., the straightaway at 80 ft., and individual lane width is 5ft. Please Help!

Answer 1

inside or outside of the circle is 34? How many lanes?

you will end up with a circle of some width, and a rectangle.

If the radii of the circle are R and r, the its area will be pi(R^2-r^2)

the rectangle you can prolly figure out.

Come back with what you figure out, and show where you get stuck, if you do. But be sure to provide complete information. There are no diagrams here.