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17.12.2019 •
Mathematics
George is 1.94 meters tall and wants to find the height of a tree in his yard. he started at the base of the tree and walked 10.20 meters along the shadow of the tree until his head was in a position where the tip of his shadow exactly overlaps the end fo the tree top's shadow. he is now 5.1 meters from the end of the shadows. how tall is the tree?
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Ответ:
Let h = the height of the tree.
Because ΔABC ~ ΔADE, therefore
DE/BC = AD/AB
That is,
h/1.94 = (5.1 + 10.2)/5.1 = 3
h = 1.94*3 = 5.82 m
5.82 m
Ответ:
the answer is D
Step-by-step explanation: