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2 years ago

The diameter of a circular placemat is 42 centimeters. What is the approximate area of the circular placemat

Mathematics

1 answer:

Inga [223]2 years ago

4 0

 $area \: of \: a \: circle \: or \: circular \: object \: = \pir^{2} \\ \:$ 

Answer:

1386cm^2.

Step-by-step explanation:

Radius of a circle = diameter / 2

= 42cm /2

= 21cm.

Area = (3.142 *21*21)cm^2

= 1386cm^2

To convert into metres:

=1386/100

=13.86m^2

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