False it can work with non right angles triangles too
A. I’m not sure what this is asking but I’d guess 8,9,10
B is 19,20,21
C is there is none
ANSWER
The correct answer is C
EXPLANATION
We want to find the value of

This is the same as:

We cancel out the common factors to get:

We simplify to get:

The correct answer is C
Answer:
I believe you have to add 15.9 on both sides