ademnesra ademnesra

13-07-2021
Mathematics

contestada

Find the area of a circle having a radius of 9 cm

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

13-07-2021

Answer:

81 pi cm^2

or approximately 254.34 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

A = pi (9)^2

A = 81 pi

Using 3.14 as an approximation for pi

A = 81 (3.14)

A =254.34 cm^2

Answer Link

swan2414 swan2414

13-07-2021

Answer:

81pi cm^2

Step-by-step explanation:

formula : pi*r^2

pi*9^2

pi*81

Answer Link

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