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Estimating Earth-Moon-Sun Sizes and Distances
Grade Level
Astronomy
AST.020 Estimating Earth-Moon-Sun Sizes and Distances
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For two objects with the same angular size, which relationship must be true if one object is twice as far away?
A
The farther object must be about twice as wide physically.
B
Both objects must be the same distance from the observer.
C
The farther object must be about half as wide physically.
D
The farther object must have no physical diameter.
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