Question

23. in ∆PQR the internal bisectors of angle Q and angle R meet at I and the external
bisectors of angle Q and angle R meet at E. IF angleP = 60°, angleQ = 70°, prove the
(I) angle IQR + angleEQR = 90°
(ii) angleQIR + angleQER = 180​

Answer 1

Answer:

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