Question

is the difference between circumference and radius of a circle is 77 cm find the circumference of a circle​

Answer 1

Answer:

Step-by-step explanation: sorry as the pic is hazy but pls check it

I hope it will help you

Answer 2

$Let \: radius \:of \:a\:circle = \pink {r} \:cm$

$Now, Circumstance \:of \:the \:circle = 2\pi r$

$Difference \:of \: Circumference \:and \\radius= 77\:cm \: (given)$

$\implies 2\pi r - r = 77$

$\implies 2\times \frac{22}{7} r - r = 77$

$\implies \frac{44}{7} r - r= 77$

$\implies \frac{44-7}{7} r = 77$

$\implies \frac{37}{7} r = 77$

$\implies \pink { r }= \frac{ 7\times77}{37 } \: --(1)$

$Now,\red { Circumference \:of \:the \:circle} \\= 2\pi r \\= 2\times \frac{22}{7} \times \frac{ 7\times77}{37 } \: [ From \:(1) ] \\= \frac{2\times 22\times 77 }{ 37}\\= \frac{3388}{37} \\\approx 91.57 \:cm$

Therefore.,

$\red{Circumference \:of \:the \:circle}\\\green {\approx 91.57 \:cm}$

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