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gulaghasi [49]
4 years ago
9

One particular 33 feet tall cone dry sand has a base diameter of 97.8 feet. To the nearest tenth of a degree, what is the angle

of repose of this type of dry sand?

Mathematics
2 answers:
Dennis_Churaev [7]4 years ago
8 0

Answer:

Angle of repose of the cone of dry stand is 34.1°

Step-by-step explanation:

Angle of repose of a cone shaped mountain is the angle between base of the mountain and height as shown in the figure attached.

From the triangle ABC,

tanB = \frac{AD}{BD}

        = \frac{AD}{\frac{BC}{2}}

        = \frac{33}{\frac{97.5}{2} }

        = \frac{66}{97.5}

tanB = 0.6769

B = tan^{-1}(0.6769)

  = 34.09°≈ 34.1°

Therefore, angle of repose of the cone of dry stand is 34.1°

Gemiola [76]4 years ago
5 0

Answer:

This forms a right triangle with height = 33 and side = 48.9

arc tan (angle) = 33/48.9

arc tan (angle) = 0.6748466258

angle = 34.0 Degrees

Step-by-step explanation:

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