angle of elevation of a ladder leaning against a wall is 60degree and the foot of the ladder is 4.6m away from the wall the length of ladder is
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the ladder forms a right angled triangle with the wall and floor
ladder becomes H
the wall becomes P
the floor becomes B
by Pythagoras theorem,
B/H=cos 60
4.6/H=1/2
H=2*4.6=9.2cm
ladder becomes H
the wall becomes P
the floor becomes B
by Pythagoras theorem,
B/H=cos 60
4.6/H=1/2
H=2*4.6=9.2cm
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