CBSE Class 9 Answered
ABCD is a rhombus 
ABC = 66o. Determine ACD. 
ABC = 66o. Determine ACD.
Asked by Topperlearning User | 17 Aug, 2017, 07:41: AM
Expert Answer
ABC = ADC = 66o (opposite angles of a parallelogram)
ODC = 33o (ODC = 1/2 ADC)In 
OCD,
OCD, ODC + OCD + COD = 180o33o + OCD +90o = 180o (COD = 90o, diagonals bisect at rt. angle)OCD = 57oHence ACD = 57o
ACD = 57o
Answered by | 17 Aug, 2017, 09:41: AM
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