Homework Help: math

Posted by Danielle on Thursday, August 30, 2012 at 3:28pm.

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 - Danielle, Thursday, August 30, 2012 at 3:31pm
has not gas
math - Steve, Thursday, August 30, 2012 at 4:11pm
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 - Danielle, Friday, August 31, 2012 at 1:30am
Thanks so much steve

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