The two angles are corresponding angles, which means they are equal to each other. Make them equal to each other in an equation.
11x - 2 = 130
Add 2 to both sides.
11x = 132
Divide both sides by 11.
x = 12
Answer:
this is to hard and I like math
Then there would be 9 girls and 23 boys
Answer:
look up desmos graphing calculator! you're welcome x
Step-by-step explanation:
The angle of elevation of 61° and 72° with the height of the tower being 553.3 m. gives Vic's distance from Dan as approximately 356 meters.
<h3>How can the distance between Vic and Dan be calculated?</h3>
Location of Vic relative to the tower = South
Vic's sight angle of elevation to the top of the tower = 61°
Dan's location with respect to the tower = West
Dan's angle of elevation in order to see the top of the tower = 72°
Height of the tower = 553.3m
![tan( \theta) = \frac{opposite}{adjacent}](https://tex.z-dn.net/?f=tan%28%20%5Ctheta%29%20%3D%20%20%5Cfrac%7Bopposite%7D%7Badjacent%7D%20)
![tan( 61 ^{ \circ}) = \frac{553.3}{ Vic' s\: distance \: to \: tower}](https://tex.z-dn.net/?f=tan%28%2061%20%5E%7B%20%5Ccirc%7D%29%20%3D%20%20%5Cfrac%7B553.3%7D%7B%20Vic%27%20s%5C%3A%20distance%20%5C%3A%20to%20%5C%3A%20tower%7D%20)
![distance = \frac{553.3}{tan ( {61}^{ \circ} )} = 306.7](https://tex.z-dn.net/?f=distance%20%20%3D%20%20%5Cfrac%7B553.3%7D%7Btan%20%28%20%7B61%7D%5E%7B%20%5Ccirc%7D%20%29%7D%20%20%3D%20306.7)
- Vic's distance from the tower ≈ 306.7 m
Similarly, we have;
![Dan's distance = \frac{553.3}{tan ( {72}^{ \circ} )} = 179.8](https://tex.z-dn.net/?f=%20Dan%27s%20distance%20%20%3D%20%20%5Cfrac%7B553.3%7D%7Btan%20%28%20%7B72%7D%5E%7B%20%5Ccirc%7D%20%29%7D%20%20%3D%20179.8)
- Dan's distance from the tower ≈ 179.8 m
Given that Vic and Dan are at right angles relative to the tower (Vic is on the south of the tower while Dan is at the west), by Pythagorean theorem, the distance between Vic and Dan <em>d </em>is found as follows;
- d = √(306.7² + 179.8²) ≈ 356
Therefore;
- Vic is approximately 356 meters from Dan
Learn more about Pythagorean theorem here:
brainly.com/question/343682
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