If each inch is 30, then each in2 is 900.
13-in x 17-in = 221 in2 = 198,900
None of this makes any sense to us at all, but the math is bullet-proof.
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If r = 13 inches then C = 81.7 inches
A 10 inch by 3 inch rectangle has a perimeter of 26 inches. Its area is measured in square inches, not inches.
1 inch is 2.54 centimeters, so...... 13 inches (2.54 centimeters/1 inch) = 33 centimeters ============
An 8 x 13 inch paper has a surface area of 104 square inches.
Oh, what a happy little question! To find the volume of a cube, you simply need to multiply the length of one side by itself three times. So, for a cube with 13-inch edges, the volume would be 13 x 13 x 13, which equals 2,197 cubic inches. Just imagine all the beautiful things you could create with that much space!