Length Calculations

Learn how to calculate the length of a circular arc using radius and central angle with easy formulas and step-by-step examples.

Learn how to calculate the perimeter of a circle (circumference) using the formula 2πr or πd for accurate and easy measurements.

Learn how to calculate the perimeter of a parallelogram with simple formulas and examples for quick and accurate results.

Learn how to easily calculate the perimeter of a rhombus using its side length with simple formulas and step-by-step examples.

Learn how to calculate the perimeter of a trapezoid by adding the lengths of all four sides with easy-to-follow steps and examples.