Respuesta :

KidLink1

Answer:

A≈106.8

Step-by-step 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=10·4+5·4+6·4+1

2·﹣104+2·(10·5)2+2·(10·6)2﹣54+2·(5·6)2﹣64≈106.79803

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