In a triangle A B C, A- B= C , then what is B euqal to?

Step-by-step solution

aligned & A- B= C (given) & B+ C= A & 2 B+C 2 B-C 2 = A & 2 A 2 (B-C) 2 =2 A 2 A 2 aligned ( B - C ) 2 = A 2 B - C 2 = A 2 B - C = A B=A+C A+B+C=180^ B+B=180^ 2 ~B =180^ B =90^ = 2