00:01
So it would be easier for us to solve for this problem if we assign values to our dimension.
00:10
Let's write here, assign values.
00:13
Let us say that our initial length is equivalent to 10.
00:19
So you could assign any number.
00:24
But in this solution, we will assign the volume of the length.
00:30
Will be 10 and the wave is 5.
00:35
Therefore, if we apply the changes, if the length will be increased by 40%, that means we have 10 plus 0 .4 times 10.
00:47
And the wave is deducted 40 % of its original width.
00:55
So we have here.
00:58
The value of our l2 is therefore 14.
01:02
And w2 is 3.
01:05
Okay, so the formula for rectangle, finding the perimeter of the rectangle, is just twice the sum of the length and its wheel.
01:15
So solving for p1, let's substitute our dimensions...