The probability of being in the smaller triangle is the area of the smaller triangle divided by the area of the larger triangle...
P(inside smaller triangle)=(2*2/2)/(6*5/2)
P(inside smaller triangle)=2/15
The answer here is the answer (a). This is because it only makes sense to just read the problem and see that the water stands in race A are closer together.
The sum of the interior angles is 180°
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