Math, asked by rajc0881, 10 months ago

radius of a circle 7.7 diameter
and circumference find

Answers

Answered by Anonymous
22

Answer:

\large\bold\red{Diameter = 15.4\:cm}\\\\\large\bold\red{Circumference=48.4\:cm}

Step-by-step explanation:

Given,

Radius of circle, r = 7.7 cm

Now,

We know that,

Diameter, d = 2r

Therefore,

We get,

 =  > d = 2 \times 7.7 \\  \\  =  > d = 15.4 \: cm

Also,

Circumference, c = 2πr

Therefore,

We get,

 =  > c = 2 \times  \frac{22}{7}  \times 7.7 \\  \\  =  > c =2 \times  22 \times 1.1 \\  \\  =  > c = 22 \times 2.2 \\  \\  =  > c = 48.4 \: cm

Answered by lucky997761
0

&lt;body bgcolor="black"&gt;</p><p>&lt;font color="white"&gt;

☆AnswEr:

 \begin{lgathered}\large\bold\red{Diameter = 15.4\:cm}\\\\\large\bold\red{Circumference=48.4\:cm}\end{lgathered}

=>Step-by-step explanation:

=>Given,

=>Radius of circle, r = 7.7 cm

=>Now,

=>We know that,

=>Diameter, d = 2r

;Therefore,

=>We get,

 \begin{lgathered}= &gt; d = 2 \times 7.7 \\ \\ = &gt; d = 15.4 \: cm\end{lgathered}

☆Also,

=>Circumference, c = 2πr

》Therefore,

=>We get,

 \begin{lgathered}= &gt; c = 2 \times \frac{22}{7} \times 7.7 \\ \\ = &gt; c =2 \times 22 \times 1.1 \\ \\ = &gt; c = 22 \times 2.2 \\ \\ = &gt; c = 48.4 \: cm\end{lgathered}

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