Question
In the figure BD = CD = AC, ∠ABC = 27 ° , ∠ACD =
y. Find value of x.Solution
∠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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- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
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