In ΔABC, the sides AB and AC are extended to P and Q, respectively. The bisectors of ∠PBC and ∠QCB intersect at a point R. If ∠R = 66°, then the measure of ∠A is∶

In ΔABC, the sides AB and AC are extended to P and Q, respectively. T

1.	In ΔABC, the sides AB and AC are extended to P and Q, respectively. The bisectors of ∠PBC and ∠QCB intersect at a point R. If ∠R = 66°, then the measure of ∠A is∶
A.	48°
B.	24°
C.	36°
D.	72°
Answer» B. 24°

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In ΔABC, the sides AB and AC are extended to P and Q, respectively. The bisectors of ∠PBC and ∠QCB intersect at a point R. If ∠R = 66°, then the measure of ∠A is∶

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