please show working out ! and please with this question
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dimension kya kya h vo to likho
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20
Dɪᴀᴍᴇᴛᴇʀ=50ᴄᴍ
ʀᴀᴅɪᴜs=50 =25
2
ʜɪᴇɢʜᴛ=45ᴄᴍ
ᴛᴏᴛᴀʟ sᴜʀғᴀᴄᴇ ᴀʀᴇᴀ= 2×ᴘɪ×ʀ(ʜ+ʀ)
=2×3.14×25(45+25)
= 10990 ᴄᴍ^2
ᴛʜᴜs, ᴛʜᴇ ᴛᴏᴛᴀʟ sᴜʀғᴀᴄᴇ ᴀʀᴇᴀ ᴏғ ᴅʀᴜᴍ ɪs 10990ᴄᴍ^2.
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