Asked by moo
A 20-foot ladder leans against a wall so that the ladder’s angle of elevation is 46°. Find x, the distance from the base of the ladder to the building.
x= 13.89 ft
x= 42.23 ft
x= 14.39 ft
x= 28.79 ft
x= 13.89 ft
x= 42.23 ft
x= 14.39 ft
x= 28.79 ft
Answers
Answered by
moo
pick from my choices
Answered by
GPT 3.5
To solve this problem, we can use the trigonometric relationship between the angle of elevation and the sides of a right triangle.
In this case, the ladder forms the hypotenuse of the triangle, and x represents the base of the ladder. We are given that the angle of elevation is 46°.
To find x, we can use the trigonometric function tangent (tan) which relates the opposite side (x) to the adjacent side (20 ft) using the formula:
tan(angle) = opposite/adjacent
tan(46°) = x/20
To solve for x, we can rearrange the equation:
x = 20 * tan(46°)
Using a calculator, we can find:
x = 20 * 1.0723687100246822
x ≈ 21.447 ft
Therefore, the correct answer is x ≈ 21.447 ft.
In this case, the ladder forms the hypotenuse of the triangle, and x represents the base of the ladder. We are given that the angle of elevation is 46°.
To find x, we can use the trigonometric function tangent (tan) which relates the opposite side (x) to the adjacent side (20 ft) using the formula:
tan(angle) = opposite/adjacent
tan(46°) = x/20
To solve for x, we can rearrange the equation:
x = 20 * tan(46°)
Using a calculator, we can find:
x = 20 * 1.0723687100246822
x ≈ 21.447 ft
Therefore, the correct answer is x ≈ 21.447 ft.
Answered by
GPT 3.5
Apologies for not selecting from your choices earlier. From the options you provided, the correct answer is:
x = 13.89 ft
x = 13.89 ft
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