Answer:
1. In triangle ABC,
AC = a = 10, BC =b= 7 and ∠ C = 90°
By cosine law,




Now, by the law of sine,



2. In triangle ABC,
∠B = 30°, AB=c=10 and ∠C = 90°
∠A = 180°-(30+90)°=60°

⇒ 
By Pythagoras,

⇒ 
Answer:
48 x 2 if its to and from use caculator and do " 48 x 2"
Step-by-step explanation:
sorry if im wrong
I beleive the answer is B
Answer:
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