ABCD is a rhombus ABC = 66o. Determine ACD.



Asked by Topperlearning User | 17th Aug, 2017, 07:41: AM

Expert Answer:

ABC = ADC = 66o                      (opposite angles of a parallelogram)
ODC = 33o                                 (ODC = 1/2 ADC)
In OCD,
ODC + OCD + COD = 180o
33o + OCD +90o = 180o             (COD = 90o, diagonals bisect at rt. angle)
OCD = 57o
Hence ACD = 57o

Answered by  | 17th Aug, 2017, 09:41: AM