I am assuming that you will need to do Pythagorus Theorem to find the 3rd side length. If thats the case then you will need to do the following formula : a^2 + b^2 = <span>√(c) So 15^2 + 30^2 = </span>√(c) = 33.5 inches
The third angle would be 115 because 180 - 45 - 20 = 115
If 18.2% of the 378 milliliters of solution is acid, 0.182(378) ml of the solution is acid. Multiplying this out, our final answer is 68.8 ml of the solution is acid.
