Question

3) If the circumference of a circle is 176cm find its radius?​

Answer 1

$\huge\rm{\purple{\underline{\underline{Answer→}}}}$

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Radius of circle (R) = 28 cm

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Step-by-step explanation:

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Circumference of a circle = 176 cm

==> 2πR = 176

==> 2× 22/7 × R = 176

==> 44/7 × R = 176

==> R = 176 × 7/44

$r = 176 \times \frac{7}{44} \\ \\ r = \frac{1232}{44} \\ \\ r = 28 \: cm$

Radius of circle (R) = 28 cm

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Answer 2

Correct Question-:

• If the circumference of a circle is 176cm . Find its radius?

AnswEr-:

• $\underline{\boxed{\star{\sf{\purple{Radius \:of \:Circle \:: \: 28cm }}}}}$

Explanation-:

Given-:

• Circumference of Circle = 176 cm

To Find-:

• Radius of a circle.

Solution-:

• $\underline{\boxed{\star{\sf{\purple{Circumference \:of \:Circle \:: \: 2 \times \pi \times Radius }}}}}$

Here ,

• Circumference of Circle-: 176 cm
• Radius of Circle-: ??
•  π = 22/7

Now ,

• $\implies {\large{\sf{176cm= 2 \times \frac {22}{7} \times Radius }}}$
• $\implies {\large{\sf{176cm= \frac {44}{7} \times Radius }}}$
• $\implies {\large{\sf{ \frac {176 \times 7 }{44} = Radius }}}$
• $\implies {\large{\sf{ 4 \times 7 = Radius }}}$
• $\implies {\large{\sf{ 28 cm = Radius }}}$

Hence,

$\underline{\boxed{\star{\sf{\purple{Radius \:of \:Circle \:: \: 28cm }}}}}$

☆ Figure related to answer to the question -:

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large 28\ cm}\end{picture}$

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