Question

ABCD is a rhombus with angle DAC=50 find angle ACD,CAB AND ABC.

Answer 1

angle ACD=50 =angleDAC( angles opposite to equal side are equal). angle CAB=50=ACD(AIA). In triangle ABC Angle BAC=50=ACD(AIA). Angles BAC+angle ACB+angleABC=180. 50+50+angle ABC=180. 100+ABC=180. ABC=180-100=80 BC=80