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Vauzh
17.01.2020 •
Mathematics
Aramp leading into a building makes a 15° angle with the ground. the end of the ramp is 10 feet from the base of the building. approximately how long is the ramp? round to the nearest tenth. 10.3 feet 10.4 feet 13.2 feet 38.6 feet?
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Ответ:
the length of the ramp is 10.4 feet
Step-by-step explanation:
From the diagram, we see that we have angle and an adjacent side. We want to calculate the hypotenuse l. We do this by using the cosine relation. Therefore,
cos(Ф) = d / l
where
Ф is the angle of elevationd is the distance that the end of the ramp is from the base of the buildingThus,
cos(15°) = 10 ft/ l
l = 10 ft / cos(15°)
l = 10.35 ft
This rounded off to the nearest tenth is
l = 10.4 feet
Therefore, the length of the ramp is 10.4 feet
Ответ:
B. 10.4 feet
Step-by-step explanation:
Ответ:
i cant really see what its asking
Step-by-step explanation: