Answer = 26.39
Explanation:
To find the perimeter, you want to find the length of each of the sides and add them together
OR - the easiest to find, the distance is 3 units (3-0)
RY - you want to count the horizontal and vertical distance between these two points. vertically, there is a distance of 4, and horizontally there is a distance of 3. you want to use these numbers with the Pythagorean theorem where a^2 + b^2 = c^2. the vertical distance of 4 is a, the horizontal distance of 3 is b, so plug these in and solve for c
3^2 + 4^2 = c^2
9 + 16 = c^2
25 = c^2
RY = c = 5
now you want to repeat these steps for the other two sides
YP - a = 4, b = 9
a^2 + b^2 = YP^2
16 + 81 = YP^2
97 = YP^2
YP ≃ 9.8488578
PO - a = 8, b = 3
a^2 + b^2 = PO^2
64 + 9 = 73 = PO^2
PO ≃ 8.5440037
Now add them all up and round
OR + RY + YP + PO = 3 + 5 + 9.8488578 + 8.5440037
= 26.39