Answer:
Boat A travels 105 km
Boat B travels 150 km
difference 45 km
103.13
Step-by-step explanation:
A=πr2
C=2πr
A=C2
4π=362
4·π≈103.1324
110.5mm
Formula : a = hb/2
a = 13(17)/2
221/2 = 110.5