An observer (o) is located 900 feet from the building (B). The observer notices a helicopter (H) flying at a 49 degree angle of elevation from his line of sight. How high is the helicopter flying over the building? You must show all work and calculations to receive full credit.

-4

step-by-step explanation:

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

can i have brainliest

there is no picture in order for this question to be answered