Pre-Exam Review: Trig is killing me
I hope you guys can help me! If I don't get a 75% on this exam I fail, and will not graduate.
I'm having trouble clicking with Trig. I have the info recorded such as;
Use Soh-Cah-Toa for right angled triangles
Use Sine Law for ASS or ASA
Use Cosine Law for SSS or SAS
But when I look at a question I just freeze and don't know what to do.
This one for example;
A stencil is made out of plastic. What is the are of the plastic? The inner design is an equilateral triangle, inside a larger equilateral triangle, inside a square.
I made a not-so-good drawing to try and help;
If someone could please explain how to solve this I will be extremely happy ... until my next question.