Answer:qualities that successful U.S. presidents appear to have in common are the following: A strong vision for the country's future. An ability to put their own times in the perspective of history. Effective communication skills. And being able to be a good representative for the whole country
If you know the radius of the circle, multiply by 2 to get the diameter. The radius is the distance from the center of the circle to the edge. For example, if the radius of a circle is 4 cm, then the diameter is 4 cm x 2 = 8 cm. If you know the circumference of the circle, divide by π to get the diameter.