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`        Find the angles of triangles in which a=2,b=1and c=√3`
10 months ago

Arun
22545 Points
```							Dear student Cos A = b² + c² - a² /2bc = 4-4 /2bc = 0 Hence Angle A = 90° Cos B = c² + a² - b² /2ac = 6 /4 sqrt(3) = (sqrt 3)/2 Hence B = 30 ° Now C = 60°  RegardsArun
```
10 months ago
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### Course Features

• 31 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions