Question

if the diameter of the circle is 10 cm, find its area​

Answer 1

$\bold{⇒Diameter = 2r = 10cm}$

$\bold{\:\:\:\:\:\:\:\:\:r = \dfrac{10}{2}cm=5cm}$

.

$\bold{⇒Area = πr²}$

$\bold{⇒Area = \dfrac{22}{7}(5)²}$

$\bold{⇒Area = \dfrac{22×25}{7}}$

$⇒$$\bold{\red{Area = \dfrac{550}{7}cm²}}$

$⇒$$\bold{\red{Area = 78.57cm²}}$

Answer 2

Answer:

πr^2

Step-by-step explanation:

22/7*5*5

=78.5

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