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Verified answer
BD = diameter
berarti
• ∆ABD siku-siku di A
• ∆BCD siku-siku di C
∠ADB = 38°
→ ∠ABD = 90° - 38° = 52° ✔️
∠CBD = 52°
→ ∠CDB = 90° - 52° = 38°
∠ADC = ∠ADB + ∠CDB
∠ADC = 38° + 38°
∠ADC = 76° ✔️