Question

explain this sum how to do​

Answer 1

perimeter=141.42cm

Step-by-step explanation:

since angle of a square=90°

therefore, by Pythagoras theorem

side²+side²=[50]²

x²+x²=2500

2x²=2500

x²=1250

x=√1250

x=√25x50

x=5√25*2

x=5*5√2

x=25√2

therefore perimeter=4*side

=4*25√2

=141.42

Answer 2

ᴋɪᴅɴᴇʏ ꜰᴜɴᴄᴛɪᴏɴ:

ᴛʜᴇ ᴋɪᴅɴᴇʏꜱ ᴘᴇʀꜰᴏʀᴍ ᴛʜᴇ ᴇꜱꜱᴇɴᴛɪᴀʟ ꜰᴜɴᴄᴛɪᴏɴ ᴏꜰ ʀᴇᴍᴏᴠɪɴɢ ᴡᴀꜱᴛᴇ ᴘʀᴏᴅᴜᴄᴛꜱ ꜰʀᴏᴍ ᴛʜᴇ ʙʟᴏᴏᴅ ᴀɴᴅ ʀᴇɢᴜʟᴀᴛɪɴɢ ᴛʜᴇ ᴡᴀᴛᴇʀ ꜰʟᴜɪᴅ ʟᴇᴠᴇʟꜱ. ᴛʜᴇ ᴅɪᴀɢʀᴀᴍ ʙᴇʟᴏᴡ ꜱʜᴏᴡꜱ ᴛʜᴇ ʙᴀꜱɪᴄ ꜱᴛʀᴜᴄᴛᴜʀᴇ ᴏꜰ ᴛʜᴇ ᴋɪᴅɴᴇʏ. ᴛʜᴇ ᴋɪᴅɴᴇʏꜱ ʀᴇᴄᴇɪᴠᴇ ʙʟᴏᴏᴅ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ʀᴇɴᴀʟ ᴀʀᴛᴇʀʏ.

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Upper one is the correct answer♥️☺