Question

TRUE or FALSE?! :)

The law of cosines can be applied to right and non-right triangles.

***MY answer: TRUE!

is that right? :)

Answer 1

Yes

Answer 2

yay! Thanks :)

Answer 3

The right triangle is a special case of the law of cosines
\[\Large c^2 = a^2 + b^2 - 2AB\cos(\theta)\]
\[\Large c^2 = a^2 + b^2 - 2AB\cos(\frac{\pi}{2})\]
\[\Large c^2 = a^2 + b^2\]