The map shows the route of the race. You are at point y, 6000 ft from the first checkpoint a. The second checkpoint b is located at the midpoint between a and the end of the race z. The total race is 3.1 miles. How far apart are the two checkpoints

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine