Beginning in Town A, Biker Bob rides his bike 8 miles west, 5 miles north, 4 miles east, and then 15 miles north, to Town B. How far apart are Town A and Town B? (Ignore the curvature of the earth.)  Choose the correct choice from the following:
A) 25 miles B) 20.4 miles C) 30 miles D) 32 miles E) 33 miles
Using Pythagoras we have one side i,e total distance traveled in north direction = 15+5= 
<gadget id="calculator">15+5</gadget>
<output>20</output>
20m   other being the base ie distance traveled west- distance traveled eat=8- 4= 
<gadget id="calculator">8- 4</gadget>
<output>4</output>
4 m   now this third side or the distance between town A and Town 20.4 miles=20^2+ 4^2=sq root 416=20.4 miles   Answer : 20.4 miles
<result>B</result>
Beginning in Town A, Biker Bob rides his bike 8 miles west, 5 miles north, 4 miles east, and then 15 miles north, to Town B. How far apart are Town A and Town B? (Ignore the curvature of the earth.)