If you know one angle apart from the right angle calculation of the third one is a piece of cake. Without at least one linear measurement the length of any side can not be determined. A 90 - v.
The longest side of a triangle is the side opposite the largest angle.
This lesson demonstrates how to find the largest side of a triangle when given the values of the three angles. Step 2 SOH CAHTOA tells us to use S ine. C a 2 b2 The hypotenuse is the longest side of a right triangle and is located opposite the right angle. The sine and cosine of 30 to find out the others sides lengths.