math 214
posted by alicia .
A group of students on a hiking trip wants to find the distance AB across a pond (see the following figure). One student suggests choosing any point C, connecting it with B, and then finding point D such that <DCB ≅ <ACB and DC≅AC. How and why does this help in finding the distance AB?

ppl cant help you with the answer b/c you didn't show us the diagram