a) cot∠B = ⇔ cot 60° ⇒ x = cot 60° × 6 = 2√3
b) sin∠C = ⇔ sin∠C = ⇒ ∠C = 30°
c) ΔABC is a isosceles right triangle ⇒ AB = BC
Ok done. Thank to me :>
Answer:
Explanation:
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