Question

two sides of a triangle are 10mm and 7mm, what's the third angle length

Answer 1

In a triangle, the sum of the lengths of any two sides must be greater than the length of the third side. So in this case, the third side length must be less than the sum of the other two sides (10mm + 7mm = 17mm).

To find the possible range of the third side length, we subtract the length of the shorter side from the sum of the other two sides: 17mm - 10mm = 7mm and 17mm - 7mm = 10mm.

Therefore, the third side of the triangle must be between 7mm and 10mm in length.