Question

BC=
Round to the nearest hundred

Answer 1

Answer:

2.3 units

Step-by-step explanation:

The unknown side is opposite the given angle 50 degrees, and the length of the hypotenuse is 3 units.

Since sin Ф = opp / hyp, we have here sin 50° = x/3, or x = 3 sin 50°.

Using a calculator, we find that the sine of 50° is 0.776.

Therefore, x = 3(0.766) = 2.298 units, or approximately 2.3 units

Answer 2

Answer:

a = 2.28

Step-by-step explanation:

BC = a

$\frac{a}{ \sin(A) } = \frac{c}{ \sin(C) } \\ \frac{a}{ \sin(50) } = \frac{3}{ \sin(90) } \\ \frac{a}{0.76} = \frac{3}{1} \\ a \times 1= 3 \times 0.76 \\ a = 2.28$