Q. 44. A LADER LEANING AGAINST A WALL IS INCLINED AT AN ANGLE ALPHA T OTHE HORIZONTAL ...THE TOP OF THE LADDER TOUCHES THE PARAPET.. ON MOVING ITS FEET "a" METRES AWAY FROM THE WALL, THE LADDER MAKES AN ANGLE BEETA TO THE HORIZONTAL AND ITS TOP NOW TOUCHES THE WINDOW. PROVE THAT THE DISTANCE OF THE PARAPET FROM THE WINDOW IS-------- a cot (alpha + beeta /2)

Asked by  | 2nd Mar, 2011, 06:48: PM

Expert Answer:

Dear Student
Here is a solution to your problem

Answered by  | 3rd Mar, 2011, 10:56: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.