16. Find the perimeter of a rectangle with a length of 3.5 meters and a width of 8 meters. $$ (P=21+2 w) $$

Question

UpStudy AI · Accepted Answer

To find the perimeter $$ P $$ of a rectangle, we can use the formula:

$$
P = 2l + 2w
$$

where $$ l $$ is the length and $$ w $$ is the width.

Given:
- Length $$ l = 3.5 $$ meters
- Width $$ w = 8 $$ meters

Now, let's substitute the values into the formula step by step:

1. Calculate $$ 2l $$:
   $$
   2l = 2 \times 3.5
   $$

2. Calculate $$ 2w $$:
   $$
   2w = 2 \times 8
   $$

3. Add the results from step 1 and step 2 to find the perimeter $$ P $$:
   $$
   P = 2l + 2w
   $$

Now, let's perform the calculations.

First, calculate $$ 2l $$ and $$ 2w $$:

$$
2l = 2 \times 3.5 = 7
$$
$$
2w = 2 \times 8 = 16
$$

Now, add these two results to find the perimeter:

$$
P = 7 + 16 = 23
$$

Thus, the perimeter of the rectangle is $$ 23 $$ meters.
The perimeter of the rectangle is 23 meters.

16. Find the perimeter of a rectangle with a length of 3.5 meters and a width of 8 meters. \( (P=21+2 w) \)