Answer:

Step-by-step explanation:
Let suppose that one of the radii meets the circle at the point (1,0). The straight line distance formula is:




22-[(87-32)/5]x2
22-[(55)/5]x2
22-11x2
22-22
0
Answer is 0
We know that
800 m-----------> 0.8 km
total distance is--------------> 20 km
if Bob walks 800 m then <span>he travel by bicycle ----> 20 km-0.8 km---> 19.2 km
if 20 km-------------> is 100%
19.2 km-------------> X
X=19.2*100/20---------> X=96%
the answer is 96%</span>