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Question : 29 of 90
Marks:
+1,
-0
Solution:
‌‌ Area ‌=‌||=15√2‌(−4+7d)−(−2+42)+(d−12)‌(7d−4)2+(40)2+(d−12)2=1800‌50d2−80d−40=0‌5d2−8d−4=0‌5d2−10d−2d−4‌5d(d−2)+2(d−2)=0‌d=2‌ or ‌d=−‌‌∵d>0,d=2‌(a+1)+(b+2)+(c−7)=6+2−2‌a+1=6&b+2=2,c−7=−2‌a=5‌‌b=0‌‌c=5‌|AB|=√1+4+49=√54‌|BC|=√25+25=√50‌|AC|=√86+4+4=√44Ans. 54
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