Perimeter = add all 3 sides
Solution:
Use pythagorean theorem to calculate the missing side (since you only have 2)
If length = 8 in, width = 5 in
Slope would be the missing side which could be calculated by getting the square root of squares of length and width
missing side = squareroot of (8^2 + 5^2) which us the squareroot of 89 as 64 + 25
Therefore slope = 9.43 in
Perimeter = 9.43 + 8 + 5 = 22.43 inches
