1/4 and you choose three different toppings for a sundae
To start, you need to subtract 4x from both sides, that way, x is one one sid of the equation.
Regular polygon can be incribed in a circle of radius equal to its side.
so if you join all the vertices to the centre, you will get 6 equilateral triangles. each interior angle will have 2 angles of 60 each. thus interior angle = 120
exterior angle=180-120=60
