Question

A ladder leaning against a wall makes an angle of 60 degree with the horizontal. if the foot of the ladder is 2.5m away from the wall,find the length of the ladder

Answer 1

hey...

cos@ = adj/hyp
cos60 = 2.5 / hyp
1/2 = 2.5/hyp
hyp = 2 X 2.5
hyp = 5 m

so the length of ladder is 5m