Answer:
288 Square inches
Explanation:
A=2AB+(a+b+c)h
AB=s(s﹣a)(s﹣b)(s﹣c)
s=a+b+c
2
Solving forA
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=8·10+10·10+6·10+1
2·﹣84+2·(8·10)2+2·(8·6)2﹣104+2·(10·6)2﹣64=288
Its C, 288 square inches
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