Question

A circular piece of metal has a radius of 3.5 meters. The metal sells for $3.25 per m². 
What is the total cost of the circular piece of metal?
Use 3.14 for pi.


$11.38

$38.47

$71.44

$125.01

Answer 1

area of circular metal=πr^2
=3.14 x 3.5 x 3.5 m^2
now,
total cost=area x rate
=3.14 x 3.5 x 3.5 x 3.25 $
=125.01 $