While I did get this correct, I thought an easier approach would be to see the shaded region as a trapezoid and calculate the area accordingly but so far I’ve had no luck. Help if possible.
I think the easier approach is to notice that
Area(shaded region in PTUR) = Area(unshaded region in PTUR) = Area(PTUR)/2
and we can find,
Area(PTUR) = Area(PQRS) - 2*(Area(RST))
You can choose numbers here, and compute the area to get the ratio.
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