In the figure below, C is between A and D, and B is the midpoint of AC. If AD=20 and BC=6, find CD.
2 answers:
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Answer:
The ramp should be 32.9 feet longer.
Step-by-step explanation:
When the ramp is at to the ground, its length can be determined by applying the appropriate trigonometric function. Let the length be represented by l, so that;
Sin θ =
Sin =
l =
=
= 33.0048
l = 33.0 feet
When the angle is reduced to , the length of the ramp would be;
Sin θ =
Sin =
l =
=
= 65.9152
l = 65.9 feet
Change in length of ramp = 65.9 - 33.0
= 32.9
The ramp should be 32.9 feet longer.