A 10 inch by 3 inch rectangle has a perimeter of 26 inches. Its area is measured in square inches, not inches.
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30 inches, 10 x 3 = 30, 13 would be the united inches or u.i. as represented by 10 + 3 =13, and the perimeter, meaning around the window would be 26 inches, 10 + 3 + 10 + 3 = 26 perimeter measuring each of the four sides around the glass.
all you have to do is 10*20 which equals what
15*10 = 150 sq inches (Length times width)
It is 1+4+1+4 = 10 inches.
5,600 cubic inches.
1/2 inchArea = (length) x (width) = (1/2 inch) x (10 inches) = 5 square inches