Which of the following segments is the longest: AB = 367 cm, CD = 5698 mm, EF = 79 dm, GH = 2.8 m?

As we can see from the condition of the assignment, the length of all segments is expressed in different units of measurement, therefore it is necessary to bring these lengths to a single one, let in this case it be millimeters:

367 cm = 10 * 367 = 3670 mm;

79 dm = 100 * 79 = 7900 mm;

2.8 m = 1000 * 2.8 = 2800 mm.

Let’s compare the lengths of the first two segments:

3670 <5698.

The 5698 mm length becomes the baseline.

Let’s compare the base length and 79 dm:

5698 <7900.

The length of 7900 mm becomes the baseline.

Let’s compare the base length and 2.8 m:

7900> 2800.

Answer: EF is the longest segment.