Respuesta :
The equation for this w=P/2-L
w=22.4/2-8.3 which equals
2.9 <----- that's your answer
w=22.4/2-8.3 which equals
2.9 <----- that's your answer
We need the two widths, and we have perimeter = 2 lengths + 2 widths. Or 22.4 = 16.6 + 2 widths.
2 widths = 22.4 - 16.6 = 5.8.
1 width is half of 5.8, or 2.9 cm.
Quick check: 22.4 = 8.3 + 8.3 + 2.9 + 2.9
So the answer is 2.9