Answer:
12 square feet
Step-by-step explanation:
x^2+4x-4
4x+1+x^2-5
x = 6
If A, B and C lies on a straight line in order, then;
AB+BC = AC
x+12+2x-4 = 26
x+2x+12-4 =26
3x+8 = 26
3x = 26-8
3x = 18
x = 18/3
Hence the value of x is 6
2080 = π x r^2
2080/π = r^2
root of 2080/π = r
r is approximately 25.7