2 semicircles puzzle | Desmos

length of green + blue semicircles

29

Expression 30: "L" Subscript, "g" "r" "e" "e" "n" , Baseline equals pi times StartFraction, "d" Over 2 , EndFraction

equals

0.6 2 8 3 1 8 5 3 0 7 1 8

30

Expression 31: "L" Subscript, "b" "l" "u" "e" , Baseline equals StartFraction, pi left parenthesis, 2 minus "d" , right parenthesis Over 2 , EndFraction

equals

2.5 1 3 2 7 4 1 2 2 8 7

31

Expression 32: "L" Subscript, "t" "o" "t" "a" "l" , Baseline equals "L" Subscript, "g" "r" "e" "e" "n" , Baseline plus "L" Subscript, "b" "l" "u" "e" , Baseline

equals

3.1 4 1 5 9 2 6 5 3 5 9

32

graph by @pattystephens https://twitter.com/pattystephens

33

puzzle posted by @le_becachel https://twitter.com/le_becachel/status/1230448929650749440

34

35

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