In the figure BD = CD = AC, ∠ ABC = 27 ° , ∠ ACD = y. Find value of x.
∠ BCD = ∠ DBC = 27° (BD = CD) ∠ BDC = 180° – (27° + 27° )= 126° ∠ ADC = 180° – ∠ BDC = 54° ∠ DAC = ∠ ADC = 54° (CD = AC) x = 180° – (54° + 54° ) = 72°
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