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त्रिकोणाचे कोन 2:3:4 ह्या प्रमाणांत आसतात. सगळ्यांत व्हडलो कोन खंयचो?

A70°
B80°
C60°
D90°
Answer & Solution
Correct answer: B. 80°
9 भाग 180 अंश वांटून घेतात, देखून दरेक भाग 20 अंश आनी सगळ्यांत व्हडलो 4 x 20 = 80 अंश.
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