Find the cost of the marble tabletop

Question

Sarah bought a circular marble tabletop to use as her dining room table. The marble is 8 ft in diameter. Find the cost of the tabletop at $81 per square yard of marble.
(Use pi  equals≈3.14.)

Answer 1

The table is 8 ft in diameter, or has a 4 ft radius = 4/3 yards

 

Area = Pi(r²) = 3.14(4/3)² = 5.58 sq yds x $81 = $452.16