Obtuse Triangle Calculator Solve triangle (sides, angles, area, perimeter) — works for obtuse triangles. Mode Two Sides + Included Angle (SAS)Three Sides (SSS)Two Angles + One Side Side a Side b Included Angle C (°) Side a Side b Side c Angle A (°) Angle B (°) Side a (opposite angle A) Angle C will…
Pythagorean Theorem Calculator Find a missing side or distance using the Pythagorean theorem. Solve Mode Two Legs → HypotenuseHypotenuse + One Leg → Other LegDistance Between Two Points Leg a Leg b Hypotenuse (c) Known Leg Point 1 (x₁, y₁) Point 2 (x₂, y₂) Select Unit unitscmminft Calculate The Pythagorean Theorem is one of the…
Right Isosceles Triangle Calculator (45-45-90) Solve a 45°-45°-90° triangle using leg, hypotenuse, or area. Calculate From Leg LengthHypotenuseArea Leg Length (L) Hypotenuse (H) Area Select Unit unitscmminft Calculate A right isosceles triangle is one of the most special and easy-to-understand shapes in geometry. It has one right angle (90°) and two equal sides, which means…
Right Triangle Area Calculator Calculate the area of a right triangle using various known inputs. Solve By A. Base & HeightB. Two SidesC. Side & AngleD. Three Sides (Heron)E. Perimeter + Two sides Base Height Opposite Adjacent Side Length Angle (°) Angle is between the given side and one leg. Side a Side b Hypotenuse…
Orthocenter of Triangle Calculator Find the orthocenter (intersection of altitudes) of a triangle. Solve By Vertex Coordinates (A, B, C)Sides + One Vertex Coordinates A (x₁, y₁) B (x₂, y₂) C (x₃, y₃) Given three side lengths and one known vertex, compute third coordinates via geometry then orthocenter. Side a (BC) Side b (AC) Side…
Third Side of Triangle Calculator Find the third side of a triangle using various known inputs. Solve By Two Sides & Included AngleSide & Two AnglesTwo Sides & PerimeterRight Triangle (Pythagoras) Side a Side b Included Angle C (°) Known Side a Angle A (°) Angle B (°) Side a Side b Total Perimeter (P)…
SSS Triangle Calculator Solve a triangle given its three sides (SSS) — computes all angles, area, perimeter, semi-perimeter. Side a Side b Side c Select Unit unitscmminft Calculate In triangle geometry, the SSS method stands for Side–Side–Side. This means you already know the lengths of all three sides of a triangle. Even though the sides…
Scalene Triangle Calculator Side a Side b Side c Select Unit unitscmminft Calculate A scalene triangle is a special type of triangle where all three sides and all three angles are different. Unlike equilateral or isosceles triangles, there is no symmetry in a scalene triangle. Because of this, finding its area and perimeter can feel…
SAS Triangle Calculator Solve triangle given two sides and the included angle. Side a Side b Included Angle C (degrees) Select Unit unitscmminft Calculate In triangle geometry, SAS stands for Side–Angle–Side. This means you already know the lengths of two sides of a triangle and the angle between them. Even though you have three values,…
Right Triangle Trigonometry Calculator Solve right triangle (sides + angles) using SOHCAHTOA or Pythagoras. Select Solve Mode Hypotenuse + AngleOpposite + AngleAdjacent + AngleOpposite & AdjacentOpposite & HypotenuseAdjacent & Hypotenuse Hypotenuse (c) Angle (°) Opposite (a) Angle (°) Adjacent (b) Angle (°) Opposite (a) Adjacent (b) Opposite (a) Hypotenuse (c) Adjacent (b) Hypotenuse (c) Select…