Question

Find the area of the circle. Round your answer to the nearest tenth. with the radius of 9 mm

Answer 1

Answer:

254.3 mm^2

Step-by-step explanation:

area aag circle is given by πr^2

where r is the radius of the circle .

here r is given 9 mm

hence area will be π(9*9)mm^2

3.14*81 or 3.14*9*9

i.e 28.26*9

i.e 254.34 mm^2

round figure 254.3

Answer 2

Answer:

The area of the circle is $254.5mm^{2}$

Step-by-step explanation:

The formula of area of circle is $\pi r^{2}$

Where radius is $9mm$

So, the area of circle is $\frac{22}{7}$×$9$×$9$

                                     $=\frac{22}{7}$×$81$

                                     $=\frac{1782}{7} \\=254.5mm^{2}$

So the area of the circle is $254.5mm^{2}$.