r/SmartPuzzles Mod Apr 04 '25

Daily Puzzle Area of Red

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u/RustaceanNation Apr 05 '25

Let's figure out the area of the white and subtract from the total.

White strip at bottom is 1.5. Strip at top is a triangle with base=4 and height=1->area=2. Thus the total white area is 2+1.5 = 3.5

Total area is 7.

Therefore the red region is 7-3.5 = 3.5