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anggap aja jari2 14 ya
Luas 1/4 lingkaran - Luas segitiga
1/4 πr² - 1/2.alas.tinggi
1/4 x 22/7 x 14 x 14 - 1/2 x 14 x14
154-98
luas : 56
jadikan jawaban terbaik ya