A ladder leaning against a wall of 60* with the horizontal if the foot of the ladder is 2.5m away from the wall find the length of ladder
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AC is the ladder
AC is the hypotenuse
cos 60⁰ = adj/ hyp = 2.5 /AC
0.5 = 2.5/AC
AC = 2.5/0.5 =5m
length of the ladder is 5m
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