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An antenna has 4 guy-wires connected to the top of the antenna, and each guy-wire is anchored to the ground. A side-view of this scenario is shown. To remind yourself how to evaluate trig functions for angle measures in degrees in this program, click here. Two guy-wires are anchored to the ground from the top of the same antenna, each forming a right triangle with the ground. The first guy-wire forms an angle with the top of the antenna measuring alpha degrees, and is anchored to the ground by anchor one. The second guy-wire forms an angle with the top of the antenna measuring beta degrees, and is anchored to the ground by anchor two. One of the guy-wires forms an angle of α = 16.62 degrees with the antenna and the opposing guy-wire forms an angle of β = 21.77 degrees with the antenna. Anchor 1 is 58 feet from the base of the antenna. How tall is the antenna? feet What is the distance between anchor 2 and the base of the antenna? (Hint: You will need to use your answer to part (a).) feet

User Robinho
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The antenna's height is approximately 17.43 feet, calculated using the tangent function and the given angle α. The distance to Anchor 2 from the base of the antenna is approximately 43.68 feet, calculated using the antenna's height and tangent function with the given angle β.

Step-by-step explanation:

To determine the height of the antenna, we use the trigonometric function tangent since we have the opposite side (height of the antenna) and the adjacent side (distance from the base to Anchor 1). The angle given is α = 16.62 degrees, and the distance to Anchor 1 is 58 feet.

The tangent of α is equal to the opposite side (height) divided by the adjacent side (58 feet).

tan(α) = height / 58 feet

height = 58 feet * tan(16.62 degrees)

We calculate the height:

height = 58 feet * tan(16.62°)

Computing this we get,

height ≈ 58 feet * 0.3005 ≈ 17.43 feet

For the distance to Anchor 2, we use the height found in part (a) and angle β = 21.77 degrees. By using tangent again:

tan(β) = height / distance to Anchor 2

distance to Anchor 2 = height / tan(β)

Computing this we get,

distance to Anchor 2 ≈ 17.43 feet / tan(21.77°) ≈ 17.43 feet / 0.3992 ≈ 43.68 feet

User Tshauck
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