100 Ways to Be As Happy As Your Dog

100 Ways to Be As Happy As Your Dog

Matematika perhatikan gambar disamping. jika luas juring POQ= 145cm². hitunglah luas lingkaran​

perhatikan gambar disamping. jika luas juring POQ= 145cm². hitunglah luas lingkaran​

Jawaban:

L juring = sudut pusat/360° x L lingkaran

145 = 150°/360° x L lingkaran

145 = 5/12 x L lingkaran

L lingkaran = 12/5 x 145

L lingkaran = 348 cm²

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