The dimensions of a rectangular prism are shown.

Which of the following formulas could not be used to find the Total Surface Area of the prism

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The dimensions of a rectangular prism are shown.

Which three statements are true about the rectangular prism?

• The base of the prism is a rectangle.

• 
• In a rectangular prism, the total surface area can be equal to the lateral surface area

• The total surface area can be found by finding the area of each face and base and multiplying them together.

The base of the prism is a rectangle.​ ​ (a)   ​

• False
• True
• I can not tell

The height of the prism is 8 cm.​ ​ (a)   ​

• False
• True
• I can not tell

The perimeter of the base is 40 cm.​ ​ ​ (a)   ​

• True
• I can not tell
• False

The lateral surface area can be found by multiplying 40 by 2. ​ ​ (a)   ​

• True
• I can not tell
• False

The combined area of both bases is 60 cm.​ (a)   ​

• False
• True
• I can not tell

Changing the height to 4 cm will only affect the lateral surface area. (a)   ​

• False
• True
• I can not tell

The figure is a triangular prism. ​ (a)   ​

• True
• I can not tell
• False

A Baker makes a cake with 2 cylindrical layers.The Baker wants to cover part with a sheet of chocolate, so he finds the lateral surface area of the entire cake. Which three statements are true?

• The total lateral surface area of the entire cake is approximately 170 square centimeters.

• The total lateral surface area of the entire cake is approximately 113 square centimeters.

• The radius of the bottom layer is 4.5 cm.