A pan that is normally 13 x 9 would measure 26 x 18 if the size is double. If you only have one pan that's 13 x 9, you can make two cakes and then place them against one another prior to frosting.
64.8 fluid ounces (a tiny smidgen more than 2 quarts) for each 1 inch deep
Use the pan with the closest size.
20 x 30 = 600 square cm
The volume would depends on length, width, and height. As well as on the exact shape.
I depends on how wide the pan is and how deep it is.
13X9 will be much too small in most cases.
A eight by eight pan would have an area of 64. So a pan double that size would have an area of 128. Therefore we need a pan that length and width multiply to equal 128. This can mean a 8 by 16 or 11.3 by 11.3 pan. In standard bakeware, a 9 X 13 pan can be used to double a recipe that calls for an 8 X 8 pan.
Yes. The second one is turned around through 90 degrees!
The best and most popular type of pan used for double layered cakes is a round pan that is 9 inches across.
64.8 fluid ounces (a tiny smidgen more than 2 quarts) for each 1 inch deep
a double pan is a pan that has a little pan that goes inside of it that you can melt, boil,etc things in it
A 9" X 13" baking pan would work well.
Depends on the size of the pan.
Assayers often used a double pan balance to weigh gold samples.
The size of a transmission pan in a Ford Taurus is usually 5/16x18. However, this may vary if you've had the pan replaced in the past.
Use the pan with the closest size.
It depends on how large you want the cake to be. For exmaple, an average sized cake might be 20''x16''x9''x6''. If you are having an exceptionally large crowd, you would then want to increase each cake pan size by 2'' or 3''. The same idea applies to a decrease in size for a smaller crowd.