Poplar shadow
The nine-meter poplar casts a shadow 16.2 m long. How long does a shadow cast by Peter at the same time if it is 1.4 m high?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- geometry
- similarity of triangles
- planimetrics
- triangle
- basic functions
- reason
- inverse relationship
- simple proportion
Units of physical quantities:
Grade of the word problem:
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