Question

How do you find the are of a triangle if you only known an angle and 2 sides

Answer 1

Respuesta:

The condition is that angle is in betwen the two sides

1.- First using cosines law , we'll find the third side

2.- Usin the Area Heron's formula we'll find the area

Explicación paso a paso:

1.-  If you know "a"  and  "b"  and the angle γ ( oposite to side c )

c = √ a² + b² - 2ab cos γ

2.- Area Heron's formula is :

A = √ s ( s - a ) ( s - b ) ( s - c )        s = ( a + b + c ) / 2

READY