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Find the surface area of the right triangular prism. Round to the nearest tenth if necessary. The height is 2.5 cm, the length is 8 cm, and the width is 5.3 cm. I need help.

  • math -

    a1=5.5*2.5
    =13.25 cm2

    a2=5.3*8
    =42.4cm2

    a3=2.5*8/2
    =10
    then times by 2 cause to right triangles =20cm2
    a4=8.38*5.3
    =44.42

    at=13.25+42.4+44.42+20
    =120.11cm2

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