Question

Can the sine rule relationship in trigonometry be used with non right angled triangle

Answer 1

Answer:

Below

Step-by-step explanation:

You can use it if you added a hight.

When you a hight you are creating a right triangle. If not you cannot use directly

Answer 2

Answer:

Yes

Step-by-step explanation:

If you mean just sine in general, then yes, it can be used with other triangles.

If you mean  $sin=\frac{opposite}{hypotenuse}$ , then there has to be a right triangle. But in other cases, sine is used to find missing sides as well as angles in triangles that are not right-angled.