A rectangle 8 centimeters by 15 centimeters has a perimeter of 46 centimeters (2l + 2h) and an area of 120 centimeters (l * h).
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15 cm^2
It is: 30*15*12 = 5400 cubic cm
15 cm for the diagonal.
The ratio is 3:2
To find the area of a rectangle, you multiply its length by its width. In this case, the rectangle is 3 cm long and 9 cm wide. So, the area would be 3 cm x 9 cm = 27 square cm.