사다리꼴 넓이 by 지인철 https://padlet.com/kikikibary/vu76gckl8z0pook1 내가 구한 사다리꼴의 넓이를 올리세요. en-us 2021-07-14 06:20:16 UTC 2025-11-21 19:24:51 UTC hello@padlet.com 1과 3입니다. kikikibary https://padlet.com/kikikibary/vu76gckl8z0pook1/wish/1649071360 2021-07-14 06:22:00 UTC https://padlet.com/kikikibary/vu76gckl8z0pook1/wish/1649071360