Question

if the longest chord is 42 then what is the radius.

Answer 1

Answer:

if the longest chord it means diameter is 42 then radius is 21.

Answer 2

$\Large{\color{blue}{\underline{\underline{Given:-}}}}$

length of longest chord = 42

$\Large{\color{blue}{\underline{\underline{To\: Find:-}}}}$

Radius of the circle

$\Large{\color{blue}{\underline{\underline{Solution:-}}}}$

We know that the longest chord in a circle is one that passes through center,that is ,diameter.

${\boxed{\sf{\pink{diameter=2×radius}}}}$

$\sf 42=2×R \\ \sf R=\dfrac{42}{2} \\ R=21cm$

$\therefore {\sf{Radius=21cm}}$

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