A. How far does the second bus travel to the apartment?

B. Find the distance x from the bus to the building with the depression of 40°?

C. From the second balcony, she looks down and observes the bus traveling to the apartment. From the angle of depression, it is 70°. How high up is the second balcony?

D. From the angle of elevation of 35°, there is a balloon above the second balcony. How high up from the ground is the balloon?

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