If a person moves 15km straight and turns right and moves 15km straight then how much distance he needs to walk to reach starting point?	Choose the correct answer:  A) 20.2  B) 21.2  C) 23.2  D) 24.2  E) 26.2
person will move along right angled traingle whose smaller sides are 15 km   &amp; 15 km   reqd distance= hypotenuse of triangle = √(15^2+15^2)= 15√2 = 21.2 km   ANSWER:21.2
<result>B</result>
If a person moves 15km straight and turns right and moves 15km straight then how much distance he needs to walk to reach starting point?