From a point at ground level 120 feet from the base of a building, the angle of elevation of the top of the building is 68°. What is the height, to the nearest foot, of the building?

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

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answer: d.) the total number of protons and neutrons is 15

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