Question

If a closed figure has three line segments joined end to end, it is a triangle. If two sides of a triangle are congruent, it is an isosceles triangle. Betty constructed a triangle in the geometry class. Based on the given statements, which is a valid argument?

Answer 1

It can be concluded that Betty drew a rectangle.
It can be concluded that Betty drew an isosceles triangle.
It cannot be concluded that Betty drew a triangle with two sides congruent.
It cannot be concluded that Betty drew a figure with three line segments joined end to end.

Answer 2

it is the last answer

Answer 3

It cannot be concluded that Betty drew a figure with three line segments joined end to end. <---incorrect.