To find the area of a round pan, you can use the formula for the area of a circle, which is A = πr². For a 9-inch round pan, the radius (r) is half of the diameter, so r = 4.5 inches. Plugging this into the formula gives A = π(4.5)² ≈ 63.62 square inches.
A 9-inch round pan has a surface area of about 63.6 square inches, while a 9x13 inch pan has a surface area of 117 square inches. To determine how many 9-inch round pans equal a 9x13 pan, you divide the area of the 9x13 pan by the area of the 9-inch round pan. This means approximately 1.84 (or 2) 9-inch round pans are needed to equal the volume of a 9x13 pan.
Area of circular pan: pi*9 squared = 254.469 square inches Area of square pan: 18*18 = 324 square inches which has the greater area
To determine how many 2.5 x 2.5 inch squares fit in a 9 x 13 inch pan, first calculate the area of both. The area of the pan is 9 inches x 13 inches = 117 square inches. The area of one square is 2.5 inches x 2.5 inches = 6.25 square inches. Dividing the area of the pan by the area of one square gives 117 / 6.25 = 18.72. Since you can only fit whole squares, you can fit 18 squares in the pan.
To get the area of a square (including rectangles), multiply side (12) x side (9), which equals 108 inches.
A 9x13 pan has a much greater volume than a round cake pan... if you need to use round pans you would probably be better off substituting two 9' round pans for one 9x13' pan. Ex.: The volume of a 9x13 pan is 9*13*1.5 = 175.5 Volume of a 9' round pan is 3.14*4.52*1.5 = 95 So a 9' round pan will hold about half the batter of a 9x13' pan.
The best and most popular type of pan used for double layered cakes is a round pan that is 9 inches across.
The only difference is the size (diameter) of the pan.
It depends on how deep the pan is.
The volume of the batter is the same. Volume in the 6 in pan: Pi r2 h = 18Pi . Volume in the 8 in pan: 16hPi . Equating the two: 18Pi = 16hPi gives h = 9/8 in.
The area of a rectangle that is 7 inches by 9 inches is 63 inches squared.
117 square inches (13 x 9 = 117)
The area of a circle with a diameter of 9 inches is: 63.62 square inches.