Redefining Sine (3 of 3: Angles Greater Than 90°)

[anamayapnambiar]

Thank you sir, my school didn't taught this part and i was confused how sine 180 can exit 😊🙏 now im all good 👍🏻

[jannatulnyeemratul]

Sir, Why is sin of the reference angle equal to sin of the original angle?I would be grateful if you answer.

[Professor_O]

How we can apply pythagorean theorem in the case of non 90 angles?