\

Step 1:

\

The triangle sides are  and angle .

\

The area of the triangle is:.

\

Substitute the values and angle in .

\

\

Use caluculator substitute,

\

\

The area of the triangle is .

\

Step 2:

\

Find .

\

Use cosine law: .

\

 

\

Substitute the values and angle in the cosin law.

\

\

The perimeter of the triangle: .

\

Substitute the values and in .

\

\

The perimeter of the triangle is .

\

Solution :

\

Area of the triangle is .

\

Perimeter of the triangle is .

\