A ladder leaning against a wall makes an angle of 60 degree with horizontal if the foot of the ladder is 2.5m away from the wall find the length of ladder
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i think the answer is 5m
harjotsingh36:
is it right??
I don't know
yes it is
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let the wall be AB and BC be the the distance between the wall and the foot and AC be the ladder
cos theta=BC/AC
COS60=2.5/AC
1/2=2.5/AC
AC=5m
hence the ladder is 5m
hope its useful
cos theta=BC/AC
COS60=2.5/AC
1/2=2.5/AC
AC=5m
hence the ladder is 5m
hope its useful
u r welcome
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