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Komok [63]
3 years ago
7

Solve both questions please ❤️❤️

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
4.

Similar triangles by law of SAS (side-angle-side)

MC CN 12 10
——— = ——— = ——— = ———
BM NA y 6


Cross multiply: (6)(12) = (10)(y)
y = 7.2



5.

Similar triangles by law of SAS (again)



40 24
——— = ———
30 x

Cross multiply: (30)(24) = (40)(x)
x = 18

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Un observador se encuentra en un faro al pie de un acantilado a 687m sobre el nivel del mar, desde este punto observa un barco c
maks197457 [2]

La distancia entre el barco y la base del acantilado es 291.61 metros.

<h3>¿Como calcular la distancia?</h3>

Podemos pensar en esta situacion como en un triangulo rectangulo. Uno de los catetos mide 687 metros, que es la altura del acantilado.

Y conocemos el angulo al que ese cateto es adjacente, que mide 23 grados.

La distancia entre la base del acantilado y el barco será el otro cateto del triangulo rectangulo.

Entonces podemos usar la relación:

tan(a) = (cateto opuesto)/(cateto adjacente)

Reemplazando lo que sabemos:

tan(23°) = D/687m

tan(23°)*687m = D = 291.61m

La distancia entre el barco y la base del acantilado es 291.61 metros.

Sí quieres aprender más sobre triangulos rectangulos:

brainly.com/question/2217700

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8 0
2 years ago
What is the distance of BC?
Aliun [14]

Answer:

BC = 9 miles

Step-by-step explanation:

Here, we are given ΔABC ∼ ΔEDC, which means both triangles are similar and they tend to have the same dimensions and properties.

To find the length of BC, we are given the proportion:

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Solving further, let's cross multiply

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Solving for x, we have:

8x = 72

Lets divide both sides by 8

\frac{8x}{8} = \frac{72}{8}

x = 9

Therefore the distance BC is 9 miles

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Purple, what's yours?

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