Perhatikan gambar berikut . Jika D adalah titik pusat lingkaran. Sudut ABC = 55°, tentukanlah besar sudut ADC dan sudut AEC!
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Verified answer
Kelas 8 MatematikaBab Lingkaran
1] ∠ADC
= 2 . ∠ABC
= 2 . 55°
= 110°
2] ∠AEC = ∠ABC
∠AEC = 55°