Correct Answer: Option C
আমরা Law of Cosines ব্যবহার করব:
c² = a² + b² − 2·a·b·cosC
এখানে,
a = 6, b = 8, C = 60°
cos60° = 1/2
c² = 6² + 8² − 2·6·8·(1/2)
c² = 36 + 64 − 48
c² = 52
তাহলে, c = √52
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