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Dan drives 5 miles north and then 8 miles west to get to school. If he walks, he can take a direct path from his house to the school, cutting down the distance. How long is the path from Dan’s house to his school?
A. 19 miles
B. 9.43 miles
C. 89 miles
D. 4.36 miles
E. 13 miles
Correct Answer: B
Explanation/Reference:
Explanation:
We are really looking for the hypotenuse of a triangle that has legs of 5 miles and 8 miles.
Apply the Pythagorean Theorem:
a2 + b2 = c2
25 + 64 = c2
89 = c2c = 9.43 miles
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