Answer:
B. Create circle A with point B on the original circle.
Step-by-step explanation:
An equilateral triangle is one in which the three angles and sides are equal. And this can be inscribed in another given shape. Inscribed triangle implies constricting a given triangle within the boundaries of another given shape, e.g circle. In this case, the edges of the triangle touches internally the circumference of the circle.
Draw circle A with point B on the circumference of the circle
Put your compass at B with radius equal to the radius of circle A
Draw an arc to cut the circumference of the circle
Draw another arc to cut the circumference on the other segment of the circle
Join the points where the arcs cut the circumference to construct the equilateral triangle
