SOLUTION: A ladder is placed against a vertical wall with
its foot on horizontal ground. If the angle of
inclination of the ladder to the horizontal is
39° and the distance between the f
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-> SOLUTION: A ladder is placed against a vertical wall with
its foot on horizontal ground. If the angle of
inclination of the ladder to the horizontal is
39° and the distance between the f
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Question 1200430: A ladder is placed against a vertical wall with
its foot on horizontal ground. If the angle of
inclination of the ladder to the horizontal is
39° and the distance between the foot of
the ladder and the wall is 4.7m, calculate
the length of the ladder correct to 1 d.p.. Answer by ikleyn(52780) (Show Source):
You can put this solution on YOUR website! .
A ladder is placed against a vertical wall with its foot on horizontal ground.
If the angle of inclination of the ladder to the horizontal is 39°
and the distance between the foot of the ladder and the wall is 4.7m,
calculate the length of the ladder correct to 1 d.p.
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Make a sketch if you need it.
You have a right angled triangle.
One its leg "a" is 4.7 m.
The adjacent angle is 39°.
They want you calculate the length of the hypotenuse "c".
Write
cos(39°) = ,
based on the definition of cosine.
From this equation
c = .
Use your calculator and complete the assignment on your own.
