Two vertical ladders length of 6 m and 11 m are kept vertically at a distance of 12 m. Find the top distance of both ladders?	Choose the correct option
A) 22  B) 27  C) 13  D) 19  E) 17
So distance between the top points = AD = 122+52−−−−−−−√=13122+52=13   So in paper B he did well.   Answer:13
<result>C</result>
Two vertical ladders length of 6 m and 11 m are kept vertically at a distance of 12 m. Find the top distance of both ladders?