chapters:-1 Area and it's measurement -1.what is the formula of cylinder
2.the appropriate unit to express the area of a two rupees coin is....................
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1. sᴜʀғᴀᴄᴇ ᴀʀᴇᴀ ᴏғ ᴄʏʟɪɴᴅᴇʀ
Surface area of the cylinder without base circles
= 2πrh
Total surface area of cylinder with base circles
= 2πrh + πr² + πr²
= 2πr(r + h)
2. ᴠᴏʟᴜᴍᴇ ᴏғ ᴀ ᴄʏʟɪɴᴅᴇʀ
Volume of a cylinder is given by, V
= πr²h
3. ᴜɴɪᴛ ᴏғ ᴀʀᴇᴀ ᴏғ ᴄᴏɪɴ
Area are generally expressed as square of units of length. Some common units of area are m², cm², mm², ft², inch² etc. Since coins are small in size, cm² or mm² are more likely to be used as unit while expressing area of coins.
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Answer:
Formula for cylinder (volume)
= pie×r2x h
Area = 2xpie x r x h +2 x pie x r²
Area of the coin can be expressed through mm²
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