AngleRight vs Triangle Calculator Pythagoras

AngleRight solves triangles and parallelograms and draws them to scale as you type. Enter what you know and every side, angle, height and area appears instantly, with clear step-by-step working. RIGHT TRIANGLES • Right angle at B: solve from two legs, a leg and the hypotenuse, a leg and an angle, the hypotenuse and an angle, or the area and a leg • Pythagoras, sine, cosine and tangent shown step by step ANY TRIANGLE • SSS, SAS, ASA, AAS and SSA • The ambiguous SSA case shows both possible triangles, or explains why none exists • Area, perimeter, heights, medians, inradius and circumradius • Tells you whether a triangle is acute, right or obtuse, and scalene, isosceles or equilateral PARALLELOGRAMS • Solve from two sides and an angle, two sides and the height, two sides and a diagonal, the base with height and angle, or both diagonals • Height, diagonals, area and perimeter, and whether it is a square, rectangle or rhombus PROTRACTOR AND TILT LEVEL • Drag two arms to measure any angle, with supplement and reflex angles • Tilt level: lay your iPhone on a surface or hold its edge against a slope DRAW • Drag the corners of a triangle or four-sided shape on a grid and watch the measurements update live • Snap to grid, and one tap to make a right angle, a parallelogram or a rectangle DESIGNED FOR iPHONE AND iPAD • Four themes — Pearl, Midnight, Royal Gold and Sand — plus Auto for Light and Dark Mode • Landscape layout with the drawing beside the controls • Degrees or radians, 0 to 4 decimal places • Optional inscribed and circumscribed circles and heights on the drawings • Share your results as text • A formula guide covering Pythagoras, SOH CAH TOA, the sine and cosine rules, area and more PRIVATE BY DESIGN No account, no ads, no tracking and no internet connection needed. Everything stays on your device.

Solve any right triangle from two values – and any other triangle from three. RIGHT TRIANGLES (FREE) Enter any two of: leg a, leg b, hypotenuse c, angle α or angle β (at least one side). Triangle Calculator finds every missing side and angle, plus the area, perimeter and height to the hypotenuse, using the Pythagorean theorem and sine, cosine and tangent. Swap the legs with one tap; a check confirms α + β = 90°. ANY TRIANGLE Enter any three values – sides a, b, c and angles A, B, C – and solve SSS, SAS, ASA, AAS and the ambiguous SSA case. Every missing side and angle and the triangle type (acute, right, obtuse; equilateral, isosceles, scalene) are free. Pro adds area, perimeter, all three heights, inradius, circumradius and the second SSA solution. VALUES ON THE DRAWING The triangle is redrawn to the true proportions of your answer, with every value written right on it. Prefer a list? Switch to the Classic layout in Settings. SEE HOW IT'S SOLVED Each result comes with its formula and your numbers, for example c = √(3² + 4²) = 5. DEGREES, MINUTES, SECONDS (PRO) Type and read angles like 36°52′12″ – for plans, surveying and job-site work. CLEAR, HONEST ANSWERS The app tells you when values can't form a triangle – a hypotenuse shorter than a leg, sides that break the triangle inequality, or angles that add up to too much – instead of returning a wrong number. FORMULA LIBRARY & HISTORY A searchable library of right-triangle and any-triangle formulas with worked examples, and a history of your calculations to reopen any time (free keeps your last 5). EVERYWHERE YOU WORK iPhone, iPad and Mac, portrait or landscape, light or dark mode – in English, German, Japanese, Turkish, Spanish, French, Italian and Russian. On iPad and Mac: a sidebar, a full-height drawing and keyboard shortcuts. TRIANGLE CALCULATOR PRO • No ads • Full Any Triangle results: area, perimeter, heights, radii and both SSA solutions • Every step of every solution • Angles in degrees, minutes and seconds • Unlimited history and Copy All The right-triangle solver and every side and angle of any triangle are always free. Pro options and prices are shown in the app. Terms of Use: https://monsware.com/right-triangle-terms Privacy Policy: https://monsware.com/right-triangle-privacy