Math

Solve triangles from SSS, SAS, ASA, AAS, or SSA inputs and get sides, angles, area, heights, medians, and radius values.

Find volume for common 3D shapes with clear units, radius or diameter options, and liquid conversions when applicable.

Find slope from two points, rise and run, or y = mx + b. Get fraction, decimal, angle, grade, and equation forms.

Find area for common 2D shapes, including triangle methods, with unit conversion and clear input checks.

Find distance, speed, or time, compare 2D or 3D points, and measure Earth-surface distance from latitude and longitude.

Enter one circle measure to find radius, diameter, circumference, and area with matching units and clear formulas.

Find total or lateral surface area for common 3D shapes, with formulas, unit choices, and clear area breakdowns.

Find nth terms, sums, ratios, differences, and Fibonacci values, plus a pattern check and term preview.

Calculate survey sample size or margin of error with finite population correction, design effect, and response-rate planning.

Find a missing side or check if 3 sides make a right triangle with clear steps, tolerance control, and input validation.