khianabergen24 khianabergen24

09-03-2020
Mathematics

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What’s the surface area of the triangular prism

Whats the surface area of the triangular prism class=

Respuesta :

sebastianfm05 sebastianfm05

09-03-2020

Answer:

405.57551

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=12·8+10·8+14·8+1

2·﹣124+2·(12·10)2+2·(12·14)2﹣104+2·(10·14)2﹣144≈405.57551

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