Answer:
111.4556
Step-by-step explanation:
Perimeter = 18 + 25 + 18√2 + 43
Perimeter = 86 + 18√2
Perimeter = 86 + 18(1.4142)
Perimeter = 86 + 25.4556
Perimeter = 111.4556
86+18
Use the properties of 45-45-90 triangles to get a side length of 18 for the 2 legs of the isosceles triangle. Then add 43+18, which is the shorter length of the rectangle, +25, which is the longer edge, +18. The answer is now 86+18.
Answer:15m on each side
30
It wouldn't affect the mean or the median.
