final aw Part 2 141 Part 3 61471 Use Law of CosincvLaw of Sines 16) Selve AABC g
ID: 2912172 • Letter: F
Question
final aw Part 2 141 Part 3 61471 Use Law of CosincvLaw of Sines 16) Selve AABC given C-5,-26 7) Solve AABn-126.-101, 43- Part 4 of incline of the ramp? 191 from the base of the and base of the stahue are S bright of the statue. of elevation to the top (10] From the top of a buailding 400 ft higher thn a nearty pking o the angle of depression of a point P on the closcr parking lot is 425, and the angle of depressice of a point Q dictly opposite P on the other side is 35. Poins Pand O and the bono of the building are on the same horinontal line. Find the istance across the parking lo.. [I1] A jet lying at an altitude of 31,000 t passes directly over given city. Two minutes later, the angle of elevation of the jet s 29. How fast is the jet flying (mphj? (l mile 5,280 t)Explanation / Answer
The inclined ramp is 20 ft long and rises 16.5 ft and let the ramp is inclined at an angle of
It means, it is a kind of right angle triangle with the perpendicular=16.5
and hypotensue=20
so using the formula of sin=perpendicular/hypotensue
sin=16.5//20
sin= 0.825
=arcsin(0.825)
=55.58°
The ramp is inclined at an angle of 55.58°
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