SOLUTION: Can you please explain which formula (sin, cos, or tan) would be used to solve this and why (and help solve too)??? I'm soooo confused here??? Thanks sooo much! The angle of ele

Algebra ->  Triangles -> SOLUTION: Can you please explain which formula (sin, cos, or tan) would be used to solve this and why (and help solve too)??? I'm soooo confused here??? Thanks sooo much! The angle of ele      Log On


   



Question 254166: Can you please explain which formula (sin, cos, or tan) would be used to solve this and why (and help solve too)??? I'm soooo confused here??? Thanks sooo much!
The angle of elevation of a 15-ft ladder is 70°. Find out how far the base of the ladder is from the wall.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The angle of elevation of a 15-ft ladder is 70°. Find out how far the base of the ladder is from the wall.
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The hypotenuse is the length of the ladder = 15 ft
The distance is the side adjacent to the 70 deg angle.
cos(70) = s/15
s = 15*cos(70)
s =~ 5.13 ft