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In a ∆ABC, if A = 4π/9 and B = 2π/9 , then a² - b² is equal to

In a ∆ABC, if A = 4π/9 and B = 2π/9 , then a² - b² is equal to

Grade:11

1 Answers

Arun
25758 Points
4 years ago
Dear Vishnu
Angle A = 80°
Angle B = 40°
Angle C = 60°
 
Now
 You can also find the sides 
 
Hence a² - b² can be easily calculated.
 
 
Regards
Arun (askIITians forum expert)

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