The missing piece of information is ∠C ≅ ∠C′
How to determine the missing piece?
From the figure, we have:
AB ≅ A'B'
<B ≅ <B'
The above means that:
- Sides AB and A'B' are congruent
- Angles B and B' are congruent
The congruence theorem is given as:
AAS --- Angle Angle Theorem
i.e.
Two corresponding angles and one corresponding side are congruent
Since a congruent side and a congruent angle have been given;
We need a congruent angle to complete the piece
In this case, we have:
∠C ≅ ∠C′
Hence, the missing piece of information is ∠C ≅ ∠C′
Read more about congruent triangles at:
https://brainly.com/question/1675117
#SPJ1
