(1/4/2) = (1/2)(1/4) = 1/8
One eighth.
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Exactly 50% of the moon is illuminated by the sun at every instant of time (except during a lunar eclipse).From our vantage point on earth, the amount of the illuminated half that we can see at any time changesduring the month."First Quarter" means the first quarter of the moon's entire cycle of phases ... about 7.4 days after the"New Moon". At that time, we see half of the illuminated part of the moon ... you'd call it a "half moon".
No they are not. The moon is round so a half moon would be half of the moon showing while a quarter moon would 1 out of 4 parts of the moon.
The Columbia Flag is three colors going horizontally. The top half of the flag is yellow, followed by a quarter of blue, and then a quarter of red.
"First Quarter" is the phase when the moon appears half-illuminated, and rises and sets roughly 6 hours (1/4 day) after the sun.