That their sides are congruent.
true
Yes. If two figures are congruent, then you literally can't tell one from the other.Anything that's true of one is also true of the other.
An obtuse triangle must have two acute angles and these can be congruent.
Two figures are congruent if and only if they have the same shape and size.
That their sides are congruent.
The Definition of Congruent Figures (which is a proof) says that if two figures have corresponding sides congruent and corresponding angles congruent, then the figures are to be congruent.
yes
False. They must be congruent.
They must be the same length.
True
true
Yes. If two figures are congruent, then you literally can't tell one from the other.Anything that's true of one is also true of the other.
They are congruent.
An obtuse triangle must have two acute angles and these can be congruent.
Two figures are congruent if and only if they have the same shape and size.
They are congruent if they are identical in shape and size.