Triangle calculations and properties
Calculate the circumscribed circle (circumcircle) of a triangle from its three sides: circumradius, diameter, circumference,…
Solve 30-60-90 and 45-45-90 special right triangles instantly. Enter any side or the area to get all sides, hypotenuse, angles,…
Classify any triangle by its sides (equilateral, isosceles, scalene) and by its angles (acute, right, obtuse). Enter three…
Check whether three side lengths can form a triangle using the triangle inequality theorem (a+b>c, a+c>b, b+c>a). Classifies…
Check whether three numbers form a Pythagorean triple (a² + b² = c²) and generate triples with the Euclidean formula. Detects…
Find similar triangles by scaling a known triangle with a scale factor, find the missing side of a similar triangle, or verify…
Calculate the perimeter of any triangle using three methods: SSS (three sides), SAS (two sides and included angle via Law…
Calculate the area of any triangle from its three sides using Heron's formula. Also finds perimeter, semiperimeter, all altitudes,…
Calculate all properties of an isosceles triangle: height from apex, area, perimeter, inradius, circumradius, vertex angle,…
Calculate all properties of an equilateral triangle: height, area, perimeter, circumscribed circle radius, and inscribed…
Calculate the altitude of any triangle using 5 methods: area & base, three sides (Heron's formula), equilateral, isosceles,…
Calculate the sides, hypotenuse, area, and perimeter of a 45-45-90 right triangle. Enter a leg, hypotenuse, or area. Supports…
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