Q. 53.7( 6 Votes )

A ladder is place

Answer :


Ladder AB and distance from the window BC = 20 m.


AC is the distance of the ladder from the building = 15 m.


From the figure, ΔABC is a right triangle.


In a right angled triangle


(Hypotenuse) 2 = (Base)2 + (Height)2


where hypotenuse is the longest side.


(AB)2 = (AC)2 + (BC)2


AB2 = (20) 2 + (15) 2


AB2 = 400 + 225 = 625


AB = 25 m


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