What is the area of the blue figure?

Explain how you can use the triangle sum theorem to find the measures of the angles in an equilateral triangle. the angles of an equilateral triangle are . let the measure of each angle be x. then, by the triangle sum theorem, x + x + x = 3x = ° solving for x gives x = °

Chose the graph below that represents the following system of inequality’s

How to determine whether two known pairs of points are on the same line.