Question

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

Answer 1

Yes

Explanation:

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

If you mean
`sin=(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.

Answer 2

Below

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