Mathematics
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(1)①、②、③解説お願いします!!

(1) 次の図で, ∠xの大きさを求めよ。 ☐ 2 81% B 39% TA T A62% B 480 X A T 3 O• 50% 50% B -T

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✨ Best Answer ✨

①接弦定理より、

  x=81

②接弦定理より、∠BCA=48なので

  x=180-(62+48)=70

③接弦定理より、∠BAC=50なので

  x=180-(50+50)=80

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