3 years ago

What is the surface area???

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

4 0

Answer:

706.4ft²

Step-by-step explanation:

This is a prism with a trapezoid base. The total area includes:

1) 2 trapezoids (bases):

A1=2×(19+5)×12.1/2=24×12.1=290.4ft²

2) side area:

A2=base perimeter×prism height=

(19+5+14+14)×8=(24+28)×8=52×8=416ft²

So total area is A1+A2

A=290.4+416=706.4ft²

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