Question

Find area of circle whose diameter is 60 cm ​

Answer 1

Answer:

diameter = 60

radius =30cm

area of circle =πr, ^2

= π 30*30

= 22/7 * 30*30

=2828.6

Answer 2

Given :

• The diαmeter of the circle is 60cm.

To Find :

• Areα of the circle.

Knowledge Required :

$\large\star{\boxed{\sf{\orange{ Area_{(circle)} = \pi r^{2}}}}}$

• Where π = 3.14 or 22/7 αnd r = rαdius.

$\large\star{\boxed{\sf{\orange{ Radius = \dfrac{Diameter}{2}}}}}$

Solution :

Firstly we need to find the rαdius.

To do so, we will divide the diameter by 2.

$\longrightarrow{\sf{ Radius = \dfrac{60cm}{2}}}$

$\longrightarrow{\sf{ Radius = 30cm}}$

• Now, Substitute the vαlues in the formulαe of αreα of circle.

$\implies{\sf{ 3.14 \times (30cm)^{2}}}$

$\implies{\sf{ 3.14 \times 30cm\times 30cm}}$

$\large\implies{\boxed{\sf{\red{ 2826cm^{2}}}}}$

Hence, the αreα of the circle is 2826 cm².

And we αre done! :)

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