Question

Diameter of a circle is 4cm. Then its radius is 2cm.?

Answer 1

Answer:

Yes,

It's Radius will be 2cm.

Step-by-step explanation:

If the Diameter of a circle is 4 cm , then it's Radius will be Half of the diameter ,ie, 2cm.

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Answer 2

${\huge {\underline {\mathfrak {\green{Question}}}}}$

Diameter of a circle is 4cm. Then its radius is 2cm.?

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${\huge {\underline {\mathfrak {\green {Answer}}}}}$

Yes, the radius of the circle is 2cm as the diameter of the circle is 4cm

As, Radius of circle

= $\frac {1}{2}of diameter$

= $\frac {1}{2}×4$

= 2

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${\boxed {\red {\bf {</strong><strong>Additional</strong><strong> </strong><strong>\</strong><strong>:</strong><strong>Information</strong><strong>}}}}$

${\blue {\underline{Some\: important \:Formulaz }}}$

${\bigstar {Perimeter \:of \:circle}}$

=$2 × \pi × r$

${\bigstar {Area \:of \:circle}}$

= $\pi × {r}^{2}$

${\bigstar {Diameter \:of \:circle}}$

= 2×r

${\bigstar {Radius \:of \:circle}}$

= $\frac {Diameter}{2}$

${\bigstar {Perimeter \:of \:semi-circle}}$

= $\frac {1}{2}×pi×Diameter$

${\bigstar {Area \:of \:semi-circle}}$

= $\frac { \pi × {r}^{2} }{2}$

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