you have a rectangle that is 100x(40+20)
and a circle that has diameter 40+20=60
so, just add those two areas.
If the area inside the circular ends but outside the rectangle does not count, then you have to subtract off the smaller circle of diameter 40.
AN ATHLETIC FIELD HAS THE SHAPE OF A 40 YARD BY 100 YARD RECTANGLE WITH A SEMICIRCLE AT EACH END. A RUNNING TRACK THAT IS 10 YARDS WIDE SURROUNDS THE FIELD. FIND THE AREA OF THE ATHLETIC FIELD WITH THE TRACK INCLUDED.
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