As shown below, an observer (O) is located 900 feet from a building (B). The observer notices a helicopter (H) flying at a 49° angle of elevation from his line of sight. What is the height of the helicopter? Round to the nearest whole number and only enter in the numerical value, no units.

i used to know but i learned it a long time ago sorry

step-by-step explanation:

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

∠cbe and ∠deb are same-side interior angles.

i took the test

here is a big fat