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Ten unit cubes are glued together as shown. How many square units are in the surface area of the resulting solid?

 

 

Guest Jun 30, 2018
edited by Guest  Jun 30, 2018
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Solution:

Subtract covered surface area from total surface area

 

Total Surface Area = 10*[(6)*(12)] = 60 units2

Covered Surface Area = 14 units2 (vertical) + 12 units2 (horizontal) = 26 units2

Surface Area of resulting solid = 60 units2 - 26 units2 = 34 units2

 

Kudos to Hectictar for noticing my error.

 

GA

GingerAle  Jun 30, 2018
edited by GingerAle  Aug 20, 2018

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