Find the area of a triangle if its two sides are 20 cm, 14 cm and form an angle of 150 degrees.

The required unknown area of the triangle is determined using the conditional variable “Y”.

Applying the formula for the area of a triangle on two sides and the angle between them and using the information from the problem, we form this expression: Y = 1/2 x 20 x 14 x sin 150 °.

The result of the calculation will look like this Y = 1/2 x 20 x 14 x 1/2 = 20 x 14/4 = 5 x 14 = 70 cm ^ 2.

Answer: The area of the triangle is 70 cm ^ 2.