Question

A circular swimming pool is 21 feet in

diameter. Mayra wants to place decorative tile
around the edge of the entire pool. About how
many near feet of tile would Mayra need for this
project?

F. 139 feet
G. 66 feet
H.33 feet
J. 132 feet​

Answer 1

G. 66 feet

Explanation:

Circumference = pi × d

3.14 × 21

= 65.94 feet

Answer 2

66 feet

Explanation:

Mayra wants to place tiles on the edge of pool, i.e, on the circumference of the circular part

so the length required will be ,2πr

radius=21/2 feet=10.5feet

now req lenght = (2π10.5)=66 (feet)