Question

Paul lives 6 miles west and 3 miles north of school. What is the direct distance from Paul's house to school?

Answer 1

It's (C) 6.7

a^2 + b^2 = c^2  

so 6^2 + 3^2 = c^2  

so 36 + 9 = c^2  

so 45 = c^2  

so the distance will be equal to to the square root of 45 which is about 6.7 miles.

Answer 2

The correct answer is A) 4.5 miles. Reason being, when he walks around it is 9 miles. When he walks DIRECTLY from his house to school, it is 4.5 miles.
Hope this helps!