How far are you from your starting point?

Question

A city has streets laid out in a square grid, with each block 135 m long.  If you drive north for three blocks, then west for two blocks, how far are you from your starting point?

Answer 1

Draw a diagram.  It's going to be a triangle, right?  Starting at point A, draw vertically to point B, a total length of 3(135 m). From that point B, draw another segment to point C, horizontally, to the left of B.. Then what is the length of side BC?  What famous theorem must be used to calculate the hypotenuse (AC)?  Always draw the figure that is described so that you can visualize what was described in words.