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#1. The perimeter of a rectangle with length a and breadth b is:
#2. If the side of a square is doubled, its perimeter becomes:
#3. The ratio of perimeter to side of an equilateral triangle is:
#4. The ratio of circumference to diameter of a circle is:
#5. Area of a parallelogram is:
#6. A median of a triangle divides it into:
#7. Arc length for angle θ:
#8. If radius doubles, circumference becomes:
#9. Triangle sides 3,4,5 → area:
#10. Heron’s formula is used for:
