To avoid paying a toll on a direct road, I go west 10 miles, south 5 miles, west 30 miles and north 35 miles. What is the length of the toll road

To avoid paying a toll on a direct road, I go west 10 miles, south 5 miles, west 30 miles and north 35 miles. What is the length of the toll road Correct Answer 50

I drive west 10 miles, south 5 miles, west 30 miles, and north 35 miles = west 40 miles, north 30 so we get, (30)² + (40)² = n² or,900 + 1600 = n² or,2500 = n² ∴n = 50 or - 50 Throwing out the negative answer, we get the distance to be 50 miles ans: 50 miles 
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