19,8²

To find the value of 19.8 squared (19.8²), you need to multiply 19.8 by itself.

So, 19.8² = 19.8 * 19.8

Calculating this, we get: 19.8 * 19.8 = 392.04

Therefore, 19.8 squared (19.8²) is equal to 392.04.