The Boat traveling east travels 30 miles in 3 hrs and the boat traveling north travels 72 miles in 3 hours. This forms a right-angled triangle with a base of 30 and a height of 72.
The hypotenuse of these triangles gives the distance between 2 boats, which is \sqrt{900+5184} = \sqrt{6084}.
Having taken a look at the answers, there are 2 options greater than 72 (height)- 78 & 98. From here it's an easy guess.
The hypotenuse of these triangles gives the distance between 2 boats, which is \sqrt{900+5184} = \sqrt{6084}.
Having taken a look at the answers, there are 2 options greater than 72 (height)- 78 & 98. From here it's an easy guess.
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