14-05-2020
Mathematics

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Work out the area of this circle take (pi) to be 3.142 and give your answers to 2 decimal places

Work out the area of this circle take pi to be 3142 and give your answers to 2 decimal places class=

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wegnerkolmp2741o wegnerkolmp2741o

14-05-2020

Answer:

A = 63.63 m^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2 where r is the radius

r = d/2 = 9/2 = 4.5

A = 3.142 * (4.5)^2

A =63.6255 m^2

Rounding to 2 decimal places

A = 63.63 m^2

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