How does the idea of a reference triangle allow us to extend right triangle trigonometry to angles greater than 90 degrees?

We’re gonna need a picture to refer to in order to figure it out. try reposting your question with the picture included.

1. use commutative property to reorder the terms.2x+81=0.2. move the constant to right side by adding its opposite on both sides. 2x+81-81=0-81.2x=(-81).3. divide the equation on both sides.2x ÷ 2 = 81 ÷ 2.x = -81/2. your answer is -81/2. if you need to simplify it into a decimal, it’s -40.5.