Which of the following describes translational motion?

Explanation

Area formulas: rectangle = length × width, square = side², triangle = ½ × base × height, parallelogram = base × height, trapezium = ½(a+b)h where a and b are parallel sides.

Circle: area = πr², circumference = 2πr = πd. Sector area = (θ/360) × πr² where θ is angle in degrees. Arc length = (θ/360) × 2πr.

Composite shapes: divide into basic shapes, calculate each, and add (or subtract for shapes with holes). Always check units match. Area measured in square units (m², cm²).