Question

1. △qed=△

complete the congruence statement.

Explanation:

Step1: Analyze triangle congruence

We need to match the corresponding vertices of the two right - angled triangles. Looking at the markings (the number of tick marks on the sides and the right - angle markings), we can see that we need to find the correct order of vertices for the congruent triangle.
For triangle congruence, the order of the vertices should correspond to the equal sides and angles. Let's assume the first triangle has vertices \(O\), \(G\), \(D\) and the second has vertices \(C\), \(R\), \(P\) (or other combinations). By looking at the side markings (two sides with two tick marks, one side with three tick marks) and the right - angle, we can see that the correct correspondence is \(\triangle OGD\cong\triangle CRP\).

Step2: Verify the correspondence

We check the sides: the sides with two tick marks should correspond, and the sides with three tick marks should correspond, and the right - angles should correspond. So the order of the vertices in the congruence statement should be such that the corresponding sides and angles are matched. So the second triangle in the congruence statement should be \(\triangle CRP\).

Answer:

CRP