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Directions: Please show work to earn credit. Answers without any work are not worth any credit. Remember elegance and labeling of all units, as well as precision and accuracy. Read each question carefully and check your solutions.
1.
a.) Find the surface area of a right prism with the following dimensions:
Length: 12 cm
Width: 7 cm
Height: 9 cm

Respuesta :

altavistard

Answer:

The total surface area of this object is 510 cm^2.

Step-by-step explanation:

Here L = 12 cm, W = 7 cm and H = 9 cm.  

There are 2 panels 12 by 9 cm, 2 panels 12 by 7 cm, and 2 panels 7 by 9 cm.  The combined areas are:  

2(108 cm^2) + 2(84 cm^2) + 2( 63 cm^2)  =  510 cm^2 total area

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