Respuesta :

gmany

Answer:

A = 15.2 mm²

Step-by-step explanation:

The formula of an area of a circle:

[tex]A_O=\pi r^2[/tex]

r - radius

We have the diameter d = 4.4 mm.

d = 2r ⇒ r = d : 2

[tex]r=4.4:2=2.2\ mm[/tex]

Substitute:

[tex]A_O=\pi(2.2^2)=4.84\pi\ mm^2[/tex]

[tex]\pi\approx3.14\to A_O\approx(4.84)(3.14)=15.1976\ cm^2\approx15.2\ mm^2[/tex]

Answer: Area of circle = 15.2 mm².

Step-by-step explanation:

Since we have given that

Diameter of circle = 4.4 mm

Radius of circle = [tex]\dfrac{4.4}{2}=2.2\ mm[/tex]

As we know that

Area of circle is given by

[tex]\pi r^2\\\\=3.14\times 2.2\times 2.2\\\\=15.19\ mm^2\approx 15.2\ mm^2[/tex]

Hence, Area of circle = 15.2 mm².

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