Question

what are the formulae of radius
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Answer 1

ᴛʜᴇ ғᴏʀᴍᴜʟᴀ ᴏғ ʀᴀᴅɪᴜs ɪs

$r = \frac{c}{2\pi}$

ʜᴇʀᴇ ,

$r =$ʀᴀᴅɪᴜs

$c =$ᴄɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ

$\pi =$ᴘɪ

____________________________

• ʀᴀᴅɪᴜs ᴍᴇᴀɴs ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ ғʀᴏᴍ ᴄᴇɴᴛᴇʀ ᴏғ ᴄɪʀᴄʟᴇ ᴛᴏ ᴏᴜᴛsɪᴅᴇ ᴇᴅɢᴇ
• ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ ᴀʀᴏᴜɴᴅ ᴄɪʀᴄʟᴇ ɪs ᴄᴀʟʟᴇᴅ ᴄɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ
• π ɪs ᴛʜᴇ ʀᴀɪᴛᴏ ᴏғ ᴄɪʀᴄᴜᴍғᴇʀᴇɴᴄᴇ ᴏғ ᴀɴʏ ᴄɪʀᴄʟᴇ ᴛᴏ ᴅɪᴀᴍᴇᴛᴇʀ ᴏғ ᴄɪʀᴄʟᴇ
• ᴛʜᴇ ᴠᴀʟᴜᴇ ᴏғ . π ɪs 3.14.. ᴏʀ $\frac{22}{7}$

Answer 2

$r = \frac{c}{2\pi}$