What is the area of a circle with radius of 10 cm?

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What is the area of a circle with radius of 10 cm?

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Answer 1 · 2018-06-22T16:22:06

$area = 100 π \approx 314.16 to 2 dec. places$ $"area "=100pi~~314.16" to 2 dec. places"$

Explanation:

$the area (A) of a circle is calculated using the formula$ $"the area (A) of a circle is calculated using the formula"$

$∙ x A = π r^{2} \leftarrow r is the radius$ $•color(white)(x)A=pir^2larrcolor(blue)"r is the radius"$

$here r = 10 thus$ $"here "r=10" thus"$

$A = π \times 10^{2} = 100 π \approx 314.16 {units}^{2}$ $A=pixx10^2=100pi~~314.16" units"^2$

Answer 2 · 2018-06-22T16:23:26

$A = π \cdot r^{2}$ $A=pi*r^2$

Explanation:

The radius of the circle: $r = 10 cm$ $r= "10 cm"$

So

$A = π \cdot {(10 cm)}^{2} \approx {314.16 cm}^{2}$ $A= pi * ("10 cm")^2 ~~ "314.16 cm"^2$

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What is the area of a circle with radius of 10 cm?

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