weee305 weee305
  • 27-04-2020
  • Mathematics
contestada

Help me on this question plss?

Help me on this question plss class=

Respuesta :

Slb20k
Slb20k Slb20k
  • 27-04-2020

Answer:

C) 81 Square Inches

Step-by-step explanation:

A=2AB+(a+b+c)h

AB=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c /2

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=6·3+7.5·3+4.5·3+1

2·﹣64+2·(6·7.5)2+2·(6·4.5)2﹣7.54+2·(7.5·4.5)2﹣4.54=81

Answer Link
joebigtoe joebigtoe
  • 27-04-2020

Answer:

the answer is c.

Step-by-step explanation:

Answer Link

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