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2 years ago

The diameter of a circle is 9 cm. What is the area of the circle? Use 3.14 for Pi

Mathematics

2 answers:

Tema [17]2 years ago

7 0

<span>the area of the circle :

r = 9\2

so :

S= r</span>² * Pi = (9\2)² * 3.14 = 63.58 cm²

Sergeeva-Olga [200]2 years ago

6 0

The area of a circle is the product of pi and the square of its radius. It is expressed as:

Area = pi x r^2 where r = d/2

We calculate as follows:
Area = pi x r^2
Area = pi x (d/2)^2
Area = pi x (d^2 / 4)
Area = 3.14 x (9^2 / 4)
Area = 63.59 cm^2

Hope this answers the question. Have a nice day.

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2 years ago