Question

Try to create a triangle with angle measures 20°, 50°, and 80°. Which of the following describes the figure?

It is a triangle whose sides appear to be all different lengths.
It is a triangle that appears to have two sides of the same length.
It is not a triangle. Two of the sides do not intersect.
It is not a triangle. A line is formed.

Answer 1

It is not a triangle. Two of the lines do not intersect.

Explanation:

the angles of a triangle should add up to 180, but these angles only add up to 150

Answer 2

it is a triangle whose sides appear to be all different lengths