如圖(十二)，為圓 O 的切線，P 為切點，交圓 O 於 B 點。若∠A＝40°，則∠APB＝？ (A) 40° (B) 30° (C) 25° (D) 20°

問題詳情

3. 如圖(十二)，為圓 O 的切線，P 為切點，交圓 O 於 B 點。若∠A＝40°，則∠APB＝？

(A) 40°
(B) 30°
(C) 25°
(D) 20°

參考答案

無參考答案

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