Answer :

Given, RAI = 35

In ∆ARI,


A + R + I = 180


35 + ARI + 90 = 180


ARI = 55


In ∆RMI,


R + M + I = 180


ARI + RMI + ARI = 180 {ARI = MIR = 55}


(2×55) + RMI = 180


RMI = 70


And, PMA = 180-RMI


PMA = 180-70


PMA = 110

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