\( 2 l+2 w \) when \( l=5.7 \) and \( w=2.3 \)

Let's calculate the expression step by step. The perimeter of a rectangle is given by the formula \( 2l + 2w \). Plugging in the values \( l = 5.7 \) and \( w = 2.3 \): 1. Calculate \( 2l = 2 \times 5.7 = 11.4 \) 2. Calculate \( 2w = 2 \times 2.3 = 4.6 \) 3. Now add both results: \( 11.4 + 4.6 = 16 \) So, \( 2l + 2w \) equals 16. And just like that, you've calculated the perimeter! Now, here's a fun twist: did you know that the cool part about rectangles is that no matter how you rearrange them, their perimeter stays the same as long as the length and width are unchanged? It's like a rectangle’s secret! Need a quick tip for similar problems? Just remember: whenever you're working with rectangular shapes, always double check whether you're being asked for perimeter, area, or something else entirely! It’s easy to mix them up. Keep an eye on those words!