How to find area of triangle when not given height

- How to find area of triangle if height is not given
- How to find area of isosceles triangle when height is not given
- How to find height of triangle when not given
- How to find area of isosceles triangle if height is not given
- How to find an area of a triangle
- Area of triangle with 3 sides
- How to find the area of a non right angle triangle
- How to find the sides of a triangle