(13) The building code requires that the minimum angle of a roof (measured from the horizontal) is 25°. If a roof is being constructed that spans a distance of 25 feet, what is the minimum height of the center of the roof above its base? 25° 25'

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A: Explanation and solutions is given below....

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A: We have to find at what angle the tangent greater than 1.

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A: According to the given diagram

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A: topic - inverse trigonometric ratios

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A: Let the angles, be θ,α as drawn in the figure. From , the figure we have : tan α=8x --(1) and, tan…

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A: The below figure represents the half plane model which is same as Euclidean angles,A hyperbolic…

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A: According to the given information the figure is,   AB = 8 feet AD = 4 feet CD = x

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A: Here, AB is the ladder.AB=65∠ABC=65° We need to find the value of AC.

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Q: Find

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A: Given that: Initial speed, u=400 m/secDistance of target, H=3000 m.

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A: According to the question:

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Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.