Answer:
138 meters
Step-by-step explanation:
step 1
Find the radius of the circular city plaza
The area is equal to
[tex]A=\pi r^{2}[/tex]
we have
[tex]A=1,520\ m^2[/tex]
[tex]\pi =3.14[/tex]
substitute
[tex]1,520=(3.14)r^{2}[/tex]
solve for r
[tex]r^2=1,520/3.14\\r=22\ m[/tex]
step 2
we know that
To find out how long is the row of bricks, determine the circumference of the circular city plaza
The circumference is equal to
[tex]C=2\pi r[/tex]
we have
[tex]r=22\ m[/tex]
[tex]\pi =3.14[/tex]
substitute
[tex]C=2(3.14)(22)=138\ m[/tex]
