Right triangle overview Print right triangle overview ▲
Scalene triangle overview Print scalene triangle overview ▲
Scalene triangle
Law of Sines:
Law of Cosines:
For any angle:
Area of a triangle (A)
Area by Heron's formula:
Where s is half the perimeter
The area (A) of a triangle is also equal to half the base multiply by the height
Triangle inequality:
Right, isosceles and equilateral triangle table Print right, isosceles and equilateral triangle table ▲
Similar triangles Print similar triangles summary ▲
Triangle circumcircle Print triangle circumcircle summary ▲
Angles bisectors and incircle Print angles bisectors and incircle summary ▲
Triangle medians Print triangle medians summary ▲
Triangle altitudes Print triangle altitudes summary ▲
Ceva's theorem Print Ceva's theorem ▲