The rectangle has length 9 cm and perimeter 30 cm. First find the breadth, then the ratio.<br><br>[[model:questions/solutions/q4506.png]]<br><br>• Perimeter = 2 × (Length + Breadth) = 30 cm<br>• Length + Breadth → 30 ÷ 2 = 15 cm<br>• Breadth → 15 − 9 = 6 cm<br>• Ratio Breadth : Length = 6 : 9<br>• Simplify by dividing by 3 → 6 ÷ 3 = 2, 9 ÷ 3 = 3<br><br>The ratio of the breadth to the length of the rectangle is 2 : 3.<br>Check: Perimeter = 2 × (9 + 6) = 2 × 15 = 30 cm. ✓