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Verified answer
Luas setengah lingkaran½πr²
½×22/7×7×7 = 77cm²
luas persegi panjang besar
p×l
30 × 14 = 420cm²
luas persegi panjang kecil
p×l
13×7 = 91cm²
luas diatas 420-77-91 = 252cm² ➡ A