For each pair of triangles, state the postulate or theorem that can be used to conclude the triangles are congruent.

Well, Africa is a continent that is very rich in terms of resources, and is readily developing as a nation. One reason would that solar energy would be one of the main sources because of its open land, second, the available waters fr hydroelectric and wind. And lastly, the nation is still coming of age, where many ideas could still be implemented in the region such as renewable energy. 

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