Mathematics
Junior High
ๅคง่ณๆฅ๏ผ
๐๐๐๐๐ปโโ๏ธ
3็ชใฎ1ใ2ใ3ใๆใใฆใใ ใใ๐โโ๏ธ
ๅ็ญใจ่งฃ่ชฌใ่ผใใฆใใใใใใใใใใงใ๐ฆ
3 ๅณใฎๅณใฎใใใชๅบ้ขใฎๅๅพacm, ๆทฑใ24cmใฎ
ๅๆฑๅฝขใฎๅฎนๅจPใจใๅๅพ 1/22acmใฎ็ไฝใฎใใใQใใใใ
ๅฎนๅจใฎๅบ้ขใฎๅจใฎ้ทใใฏ8cmใงใใใ
ใใฎใจใใๆฌกใฎๅๅใซ็ญใใใ ใใ ใ, ๅๅจ็ใฏ
ใจใใๅฎนๅจPใฎๅใใฏ่ใใชใใใฎใจใใใ
(1) ฮฑใฎๅคใๆฑใใใ
(2) ใใใQใฎไฝ็ฉใฏไฝcmใ,ๆฑใใใ
2acm
87 cm
ใงใ!
acm
ๅฎนๅจP
2210211? OSEB SE
/acm
(3) ๅฎนๅจPใซใใใQใๅ
ฅใใฆใใๆฐดใ80cm ยฒ ใ ใๆณจใใจ, ๆฐดใฎๆทฑใใฏไฝcmใซใชใใ, ๆฑใใใ
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