চিত্রে 55°,
A
90°
B
55°
C
45°
D
35°
Correct Answer: 35°
ÐPQR = 55° Ges PQ = PR \ ÐPRQ = 55° Avevi, \ ÐLRN = 90° \ ÐNRP = 90° – ÐPRQ = 90° – 55° = 35°