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Answer :

Step-by-step explanation:

area of equilateral ∆ =

[tex]( \sqrt{3} \div 4) {a}^{2} [/tex]

here a = 3

area of ∆ = 3.9 in^2

area of circle

[tex]\pi {r}^{2} [/tex]

= 19.63 in^2

area of shared region = 19.63-3.9= 15.73 in^2