Either one is fine. It's your choice.
It'll be a lot easier if you use the same units that the sides are given in.
4.3 centimeters is approximately 1.69 inches. To convert centimeters to inches, you can use the conversion factor where 1 centimeter is equal to 0.393701 inches. Thus, multiplying 4.3 by this factor gives you the result in inches.
9 times 13 = 117 square inches
62.5
Use: 2*pi*radius = circumference
You use a ruler or similar object that is marked with centimeters. If your ruler only has inches, measure the inches, then multiply with 2.54 to get centimeters.
cenimeters or decimeters and sometimes inches it depends on the insect
4.3 centimeters is approximately 1.69 inches. To convert centimeters to inches, you can use the conversion factor where 1 centimeter is equal to 0.393701 inches. Thus, multiplying 4.3 by this factor gives you the result in inches.
In the metric system, centimeters. In the English system, inches.
you could, but generally you should use millimetres
34 inches
9 times 13 = 117 square inches
62.5
A tape measure, calibrated in inches.
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You measure the linear inches with a ruler or tape measure, then you do the calculation to find out the area (length times width, if it is a rectangular shape).
Use: 2*pi*radius = circumference
Use the "Tenths" scale of inches, or the centimetres and millimetres scale.