Answer:
Step-by-step explanation:
radius r = √256 = 16
Hypotenuse of the triangle is a diameter of the circle.
hypotenuse = 2r = 32
Sides of a 30-60-90 are in the ratio 1:√3:2
side opposite the 30° angle = 32/2 = 16
side opposite the 60° angle = 16√3
Perimeter = 48+16√3 units