the empire state building in NYC is 1454 ft mtall a person 400 feet from the center of the towers bases sight the top of the tower find the angle of elevation​

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.