You can estimate the width of the river at point A by taking several sightings to the tree across the river at point B. The diagram shows the results for locations C and D along the riverbank. Using ΔBCA and ΔBDA, what can you conclude about AB, the width of the river at point A? What could you do if you wanted a closer estimate?

Transcribed Image Text:

C 40° 50 yd A B 50⁰ 35 yd D