I can find a missing angle in a right triangle using sin, cos, and tan.

what is different from yesterday?

We will do the same thing we did yesterday, but then we will use the inverse trig functions to find the value of the missing angle. So, we're adding a step!

So, what are inverse trig functions?

They are the "opposite operation" of trig functions - just like subtraction is the opposite of addition and square roots are the opposite of squares.

how do you do them in your calculator?

They are the functions that say sin^(-1). Sometimes, they are above the trig functions (and you need to press SHIFT). Sometimes, you press "INV" or "2nd."

Let's start our work together. Work on your own when you're ready!

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