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Determine the minimum amount of packaging needed to completely cover a triangular prism toblerone bar with these dimensions: length 22.5cm; triangular face gas edges 4.5cm and height 4.0cm. Express the surface area to the nearest square centimeter.

  • math -

    has not gas

  • math -

    area of triangular base: 1/2 (4.5)(4) = 9
    area of lateral (rectangular) face: 22.5*4.5 = 101.25

    total area = 2 bases + 3 faces = 2*9 + 3*101.25 = 321.75

  • math -

    Thanks so much steve

  • math -

    the answer to the problem is 408 square inches

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