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Pachacha [2.7K]
2 years ago
11

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

<em><u>area  \: of \: a \: circle \: or \: circular \: object \:  = \pir^{2}  \\  \:</u></em>

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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