Answer:
The area of the square lawn is 
Step-by-step explanation:
Part 7)
Let
x ----> the length side of the square lawn in meters
we know that
The area of the path is equal to

----> equation A
----> equation B
so
Solve for x
The area of the square lawn is

substitute the value of x

Repeating decimal is the answer
Surface area of the pyramid= 4*(area of the triangle) + area of the square
Area of the triangle = (1/2)*base*height=(1/2)*5*5= 25/2 in²
Area of the square = 5*5 =25 in²
Surface area of the pyramid = 4*(25/2) + 25=2*25 + 25=75 in²
1. figure c
2.figure b
3. figure a b and c