Given any 2 of the 3 fields, this Right Triangle Solver will compute the remaining one.
Right triangles have one 90 degree angle (like a square).
The side opposite that angle is the longest side (the hypotenuse),and is labeled c.
The other two sides are shorter and are labeled a and b interchangeably.
Break out your cutting mat, fabric, rulers, templates, rotary cutter, scissors, omnigrids....