Question

find the circumference and area of a circle whose diameter is 28 CM​

Answer 1

Answer:

$Circumference \:of \:the\\circle (C)= 88\:cm$

$Area\:of \:the\: circle (A)=616\:cm^{2}$

Step-by-step explanation:

$Given \: diameter \:of \\a\:circle (d)=28\:cm$

$i) Circumference \:of \:the\\circle (C)= \pi d\\=\frac{22}{7}\times 28\\=22\times 4\\=88\:cm$

$ii) Area\:of \:the\: circle (A)\\=\pi \frac{d^{2}}{4}\\=\frac{22\times 28\times 28}{7\times 4}\\=22\times 28\\</p><p>= 616 \:cm^{2}$

Therefore,

$Circumference \:of \:the\\circle (C)= 88\:cm$

$Area\:of \:the\: circle (A)=616\:cm^{2}$

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