Question

Could the following side lengths form a triangle? If yes, classify the triangle by its sides

8,10, 20
Answer

Is it a triangle?
.
Classification by sides

Answer 1

Is it a triangle? No.
Because 8 + 10 = 18 which is less than 20, the triangle inequality fails, so these lengths cannot form a triangle.

Classification by sides: Not applicable (they do not form a triangle).