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ตอนที่ 2 แบบระบายตัวเลขที่เป็นคำตอบ จำนวน 4 ข้อ (ข้อ 12 - 15)
12.
สีเหลี่ยมผืนผ้ารูปหนึ่งมีอัตราความกว้างต่อความยาวเป็น ถ้าสี่เหลี่ยมรูปนี้มีความกว้าง 16 เซนติเมตร
จากข้อมูล สี่เหลี่ยมรูปนี้มีความยาวรอบรูปกี่เซนติเมตร
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Ask by Young Watson. in Thailand
Jan 21,2025

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สี่เหลี่ยมรูปนี้มีความยาวรอบรูป 88 เซนติเมตร

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จากอัตราส่วนความกว้างต่อความยาว เมื่อความกว้าง เซนติเมตร จะคำนวณความยาวได้โดยการตั้งอัตราส่วน ดังนั้น เซนติเมตร
ความยาวรอบรูปของสี่เหลี่ยมผืนผ้าจะคำนวณโดยใช้สูตร ความกว้างความยาว
ตอบ เซนติเมตร

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