In your toolbox, you would find 3 tools that you would need to construct a full-made triangle, just like a house!

1. If you can’t find the hypotenuse of your side length, then why not use the Pythagorean Theorem with the formula of + = to + = in advanced math for grade 10
2.  You should be following the SOHCAHTOA acronym to solve the ratio of the missing length, when you don’t have two measuremeants that are given to your sides. As you can see the textbook question that I have answered in page 82, there is a variable that want you to solve. You can either divide or multiple with the given length, but it depends of what your ratio is telling you. This would help to solve out what the variable should be for the angle to check back on.
3. The 90 degree is always the right angle and it should be 180 degree as the sum. You would minus both of them, with the other angle that you have be given to find the second side of the angle. This would make the traingle to be complete.

Side note: If there is none of the acute angle, but a variable that is replaced. Then you need to click into your calculator with the ratio of the negative exponent, that is, to click the shift key. And the two measurements that are given of the sides. It would equal to find the acute angle that you would need of the triangle.