Solving a word problem with Distance formula ...

[John_V3]

Question:

One house is 12 miles east of a school. Another house is 9 miles north of the school. How far apart from each other are the houses ?


I usually know how to do these problems, but it didn't give me enough points. How would I go by doing this ? Thanks.

 

[Gene]

You havea right triangle with legs of 9 and 12. Find the hypotenuse.

 

[daveyp225]

House1 +
   |          +            ? mi
   |                 +   
   | 9mi                    +
   |                               +
   |                 12mi                +
School--------------------------------House2

a^2 + b^2 = c^2
9^2 + 12^2 = c^2
.....