Question content area top Part 1 ​Keisha, Dwayne, and Lonzell are planning for a new bridge to replace the old bridge. The new bridge will start at point​ B, where Dwayne is​ standing, and end at point​ C, where Keisha is standing. Lonzell walks to point D and then walks parallel to the river until he reaches point E where he sees Dwayne and Keisha are aligned. Why is the distance from E to B the length of the new​ bridge? Question content area bottom Part 1 It is given that ▼ BC overbar congruent BE overbar . AB overbar congruent BD overbar . AC overbar congruent DE overbar . ▼ because they are vertical angles. ▼ angle ABC congruent angle DBE angle Upper A congruent angle Upper D because they are alternate interior angles.​ Therefore, triangle symbolBAC is congruent to triangle symbolBDE by ▼ ​So, CB overbar congruent BE overbar because the corresponding parts of congruent triangles are congruent. This means that the distance from E to B is the length of the new bridge.