If you work out the equation the answer would be 5 but its not a definite answer.
The length of the ladder nearest hundredth of a foot is 23 feet.
We have given that,
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 20 feet up.
The ladder makes an angle of
the ground.
<h3>
What is the sin ratio?</h3>

Therefore we get,



Therefore, The length of the ladder nearest hundredth of a foot is 23 feet.
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Answer:
y = (ax)2
y = 2ax
divide both sides by 2a to make x the subject of the formula.
y/2a = 2ax/2a
x = y/ 2a
hope this was helpful,thanks
Answer:
area of trapezoid/trapezium = 
h=height
a and b are the parallel sides (top 2.5 and bottom 6 in this pic)
so 