Loading ad... Ngoc DiepMember for 2 years 8 months Age: 8 Level: 3 Language: Vietnamese (vi) ID: 1758708 28/12/2021 Country code: VN Country: Vietnam School subject: Môn Toán (1061935) Main content: Bài 1 (2007518) Bài 1 (chu vi hình vuông) Other contents: Bài 1 Loading ad... Share / Print Worksheet Google Classroom Microsoft Teams Facebook Pinterest Twitter Whatsapp Download PDF Loading ad...