Explain ...This Sum..??

Explain ...This Sum..?? (H) C 4.1 (i) 700 C5n6üDTLb (iii) 450 AB PQ .4C=PR (10= 60' ISIu5Lr#5å 62032' 2. 3. (ii) 340 (iii) iiv) 121048' (x-20)0

Q3. (ii) x-20+60=180     {Since both angles form a linear pair}x-20=180-60x-20=120x=140(v) 3x+2x+90=1805x=180-905x=90x=18
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