Area Calculator + Quick Percentage Calculator 사용 방법
- Pick your shape. Choose from rectangle, square, triangle, circle, trapezoid, or parallelogram in the dropdown — whatever your problem is asking for.
- Enter your dimensions. Type the lengths, widths, radii, or heights from your worksheet. Decimals are fine, and you can mix whole numbers with fractions.
- Double-check your units. Make sure every input uses the same unit (cm, in, m, ft). Mixing them is the #1 reason answers come out weird.
- Hit calculate. The tool spits out both area and perimeter at once, so you don't have to run it twice for the same shape.
- Copy your answer. Round to the decimal places your teacher wants, write it down with the correct squared unit, and you're done.