In ∆ PQR, ∠R = ∠P and QR = 4 cm and PR = 5 cm. Then the length of PQ isA6B4C2.5D4.2Answer: B. 4 Read Explanation: Given that, in a triangle PQR, ∠R = ∠P. Since, ∠R = ∠P, the sides opposite to the equal angles are also equal. Hence, the length of PQ is 4 cm.Read more in App