Please solve question no 12 with proper explanation 

Asked by adityaahuja099 | 2nd Dec, 2017, 10:05: AM

Expert Answer:

begin mathsize 16px style AE space is space diameter angle ACE equals 90 degree angle ACD equals 60 degree increment ABE approximately equal to increment ACE..... open parentheses AAS close parentheses So space AC equals AB in space increment ABC AC equals AB angle ACB equals 60 degree angle ABC equals 60 degree..... iso increment so angle BAC equals 60 degree space end style

Answered by Arun | 2nd Dec, 2017, 03:37: PM

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