ᴀ ʀᴇᴄᴛᴀɴɢᴜʟᴀʀ ꜱʜᴇᴇᴛ ᴏꜰ ᴘᴀᴘᴇʀ ɪꜱ ʜᴀᴠɪɴɢ ᴍᴇᴀꜱᴜʀᴇꜱ 11 ᴄᴍ* 4 ᴄᴍ. ɪᴛ ɪꜱ ꜰᴏʟᴅᴇᴅ ᴡɪᴛʜᴏᴜᴛ ᴏᴠᴇʀʟᴀᴘᴘɪɴɢ ᴛᴏ ᴍᴀᴋᴇ ᴀ ᴄʏʟɪɴᴅᴇʀ ᴏꜰ ʜᴇɪɢʜᴛ 4 ᴄᴍ. ꜰɪɴᴅ ᴛʜᴇ ᴠᴏʟᴜᴍᴇ ᴏꜰ ᴛʜᴇ ᴄʏʟɪɴᴅᴇʀ.
Answers
Answered by
8
Answer:
38.5cm^2
Step-by-step explanation:
=>Length of paper= Circumference of cylinder
11= 2πr
11= 2×22/7×r
r= 7/4 cm
=> Volume of cylinder= πr^2h
Volume of cylinder= 22/7×7/4×7/4
Volume of cylinder= 77/2
Volume of cylinder= 38.5 cm^2
Volume of cylinder= 38.5 cm^2
Answered by
312
Given : A paper measures 11 cm by 4 cm. It is folded to make a cylinder. It has a height of 4 cm.
To Find : Find the volume of the cylinder ?
_________________________
Solution : The paper is folded, the length, 11 cm, will become the circumference of the cylinder.
- Find the radius :
➻ Circumstance = 2πr
➻ 2πr = 11
➻ 11 ÷ 2π
➻ 1.75 cm
- Find the volume :
➻ Volume = πr²h
➻ Volume = π(175)²(4)
➻ Volume = 38.5 cm³
Hence,
- The volume of the cylinder is 38.5 cm³.
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