A scientist is trying to measure the distance across a marsh as shown in the figure above. He chooses two points at either end o
f the marsh representing the endpoints of the desired distance, D. He then chooses another point away from the marsh's border so that a right triangle is formed. He calculates that the angle between the base of this triangle and its hypotenuse is 45° . He then measures one of the sides of the triangle to be 300 m. What is the length, D, across the marsh? Round to the nearest tenth of a meter.
A.
212.1 m
B.
424.3 m
C.
600 m
D.
519.6 m
1 answer:
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