Question

What is BC? Plz help

Answer 1

Answer and Step-by-step explanation:

To find the length of BC, we will be using the trigonometric function Sine.

The Sine trig function is as follows:

sin(θ) = $\frac{Opposite Side}{Hypotenuse}$

Plug in the values and solve for the Hypotenuse (BC)

$sin(45) = \frac{8}{x}$

Multiply x to both sides, then divide both sides by sin(45).

x = $\frac{8}{sin(45)}$

Input into a calculator and solve.

The length of BC is $8\sqrt{2}$, or 11.3137.

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