Question

diameter 9cm what is the area of circles?​

Answer 1

Answer:

diameter = 2 radius

so radius = 9/2 cm

area = π r²

area = (22/7) (9/2)²

area = (22/7) (81/4)

area = 63.64... cm²

Answer 2

Question

diameter 9cm what is the area of circles?

Answer

$\red \implies \sf{Area = \pi {\frac{d}{2^{2} }}}^{2} \\ \red \implies \sf{ \frac{22}{7} \times \frac{9^{2} }{2^{2} } } \\ \red \implies \sf{ \frac{22}{7} \times \frac{81 }{4}} \\ \red \implies \sf{ \frac{ \cancel{22} ^{11} }{7} \times \frac{81 }{ \cancel{4}^{2} }} \\ \red \implies \sf{ \frac{{11} }{7} \times \frac{81 }{ {2} }} \\ \red \implies \sf{ \frac{891}{14} } \\ \\ \red \implies \frak{Area = \red{63.65cm^{2} } }$

☆So the Area of circle is 63.65cm²