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= 3/4 x π r²
=3/4 x 22/7 x 7 x 7
= 115,5 cm²
Luas persegi
= s x s
= 14 x 14
= 196 cm²
Luas daerah yang diarsir
= Luas persegi - luas 3/4 lingkaran
= 196 - 115,5
= 80, 5 cm² { b }