Construct a circle with centre 'O' and radius 3.5 cm. Take a point P on it, draw a tangent passing
through point P.
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Answer:
ᴀ ғɪɢᴜʀᴇ ᴏғ sᴘᴇᴇᴄʜ ᴏʀ ʀʜᴇᴛᴏʀɪᴄᴀʟ ғɪɢᴜʀᴇ ɪs ᴀ ᴡᴏʀᴅ ᴏʀ ᴘʜʀᴀsᴇ ᴛʜᴀᴛ ᴇɴᴛᴀɪʟs ᴀɴ ɪɴᴛᴇɴᴛɪᴏɴᴀʟ ᴅᴇᴠɪᴀᴛɪᴏɴ ғʀᴏᴍ ᴏʀᴅɪɴᴀʀʏ ʟᴀɴɢᴜᴀɢᴇ ᴜsᴇ ɪɴ ᴏʀᴅᴇʀ ᴛᴏ ᴘʀᴏᴅᴜᴄᴇ ᴀ ʀʜᴇᴛᴏʀɪᴄᴀʟ ᴇғғᴇᴄᴛ.[] ғɪɢᴜʀᴇs ᴏғ sᴘᴇᴇᴄʜ ᴀʀᴇ ᴛʀᴀᴅɪᴛɪᴏɴᴀʟʟʏ ᴄʟᴀssɪғɪᴇᴅ ɪɴᴛᴏ sᴄʜᴇᴍᴇs, ᴡʜɪᴄʜ ᴠᴀʀʏ ᴛʜᴇ ᴏʀᴅɪɴᴀʀʏ sᴇǫᴜᴇɴᴄᴇ ᴏʀ ᴘᴀᴛᴛᴇʀɴ ᴏғ ᴡᴏʀᴅs, ᴀɴᴅ ᴛʀᴏᴘᴇs, ᴡʜᴇʀᴇ ᴡᴏʀᴅs ᴀʀᴇ ᴍᴀᴅᴇ ᴛᴏ ᴄᴀʀʀʏ ᴀ ᴍᴇᴀɴɪɴɢ ᴏᴛʜᴇʀ ᴛʜᴀɴ ᴡʜᴀᴛ ᴛʜᴇʏ ᴏʀᴅɪɴᴀʀɪʟʏ sɪɢɴɪғʏ. ᴀ ᴛʏᴘᴇ ᴏғ sᴄʜᴇᴍᴇ ɪs ᴘᴏʟʏsʏɴᴅᴇᴛᴏɴ, ᴛʜᴇ ʀᴇᴘᴇᴀᴛɪɴɢ ᴏғ ᴀ ᴄᴏɴᴊᴜɴᴄᴛɪᴏɴ ʙᴇғᴏʀᴇ ᴇᴠᴇʀʏ ᴇʟᴇᴍᴇɴᴛ ɪɴ ᴀ ʟɪsᴛ, ᴡʜᴇʀᴇ ɴᴏʀᴍᴀʟʟʏ ᴛʜᴇ ᴄᴏɴᴊᴜɴᴄᴛɪᴏɴ ᴡᴏᴜʟᴅ ᴀᴘᴘᴇᴀʀ ᴏɴʟʏ ʙᴇғᴏʀᴇ ᴛʜᴇ ʟᴀsᴛ ᴇʟᴇᴍᴇɴᴛ, ᴀs ɪɴ "ʟɪᴏɴs ᴀɴᴅ ᴛɪɢᴇʀs ᴀɴᴅ ʙᴇᴀʀs, ᴏʜ ᴍʏ!"—ᴇᴍᴘʜᴀsɪᴢɪɴɢ ᴛʜᴇ ᴅᴀɴɢᴇʀ ᴀɴᴅ ɴᴜᴍʙᴇʀ ᴏғ ᴀɴɪᴍᴀʟs ᴍᴏʀᴇ ᴛʜᴀɴ ᴛʜᴇ ᴘʀᴏsᴀɪᴄ ᴡᴏʀᴅɪɴɢ ᴡɪᴛʜ ᴏɴʟʏ ᴛʜᴇ sᴇᴄᴏɴᴅ "ᴀɴᴅ". ᴀ ᴛʏᴘᴇ ᴏғ ᴛʀᴏᴘᴇ ɪs ᴍᴇᴛᴀᴘʜᴏʀ, ᴅᴇsᴄʀɪʙɪɴɢ ᴏɴᴇ ᴛʜɪɴɢ ᴀs sᴏᴍᴇᴛʜɪɴɢ ᴛʜᴀᴛ ɪᴛ ᴄʟᴇᴀʀʟʏ ɪs ɴᴏᴛ, ɪɴ ᴏʀᴅᴇʀ ᴛᴏ ʟᴇᴀᴅ ᴛʜᴇ ᴍɪɴᴅ ᴛᴏ ᴄᴏᴍᴘᴀʀᴇ ᴛʜᴇᴍ, ɪɴ "ᴀʟʟ ᴛʜᴇ ᴡᴏʀʟᴅ's ᴀ sᴛᴀɢᴇ."