It is 340 cm
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340 cm would be greater than 3200 mm as 340 cm is equivalent to 3400 mm (340 x 10). So, from there, do the math. 3400 > 3200.
Let the length be 3x and the width be x: 3x*x = 243 3x2 = 243 Divide both sides by 3: x2 = 81 Square root both sides: x = 9 Therefore: length = 27 cm and width = 9 cm
2x+2y=86 y=19 2x+2(19)=86 2x=48 x=24 length=19 (given in question) width= 24 (solved above)
0.09 m is 9 centimeters, therefore 90 cm is greater.
The length could be 3 cm (width = 1 cm), with a perimeter of 8 cm, which is not more than 72 cm. Or it could be 6 cm (w = 2 cm, perimeter = 16 cm).