this is belong to the chapter congruence of triangle ncert ch 7
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Step-by-step explanation:
=Q=75•,P=75•
-—-—-------------------------
PQ = PR
=Q =R
The sum of all angles in a Triangle=180•
P =30•
=180 -30 =Q +R
150 =Q+R
So, if Q=R, then 150/2 = Q
= 150/2 = R
75•=Q
75•=R
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