Mathematics
Junior High

่‡ณๆ€ฅ๐Ÿ™‡โ€โ™€๏ธ๐Ÿ™‡โ€โ™€๏ธ

ใ“ใฎๅ•้กŒใฎ็ญ”ใˆใจ่งฃใๆ–นใ‚’ๆ•™ใˆใฆใใ ใ•ใ„๐Ÿ™‡โ€โ™€๏ธ๐Ÿ™‡โ€โ™€๏ธ

่งฃใๆ–นใฎ่ชฌๆ˜Žใฏ่ฉณใ—ใๆ›ธใ„ใฆ้ ‚ใ‘ใ‚‹ใจๅฌ‰ใ—ใ„ใงใ™๐Ÿฅบ๐Ÿ™‡โ€โ™€๏ธ

(โ‘ฅ) ๅ›ณใฎใ‚ˆใ†ใชใ€/A=70" ใงใ‚ใ‚‹ ใธABC ใซใŠใ„ใฆใ€ใƒณB ใฎไธ‰็ญ‰ๅˆ†็ทšใจ /Cใฎๅค–่ง’ใฎไบŒ็ญ‰ๅˆ†็ทšใฎไบค็‚นใ‚’E ใจใ— ใ“ใฎใจใใ€ใƒณBEC ใฎๅคงใใ•ใ‚’ๆฑ‚ใ‚ใชใ
ไธ€ๆฌก้–ขๆ•ฐ ่‡ณๆ€ฅ ๆ•ฐๅญฆ ไธญๅญฆ2ๅนด็”Ÿ ไธญๅญฆไบŒๅนด็”Ÿ ไธญ2

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