diameter 9cm what is the area of circles?
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diameter 9cm what is the area of circles?
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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
Question
diameter 9cm what is the area of circles?
Answer
[tex] \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} } }[/tex]
☆So the Area of circle is 63.65cm²