Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to calculate the diameter of a circle [title] If you know the radius of the circle, double it to get the diameter. [step] The radius is the distance from the center of the circle to its edge. For example, if the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm.

Ending1: [title] Calculate the diameter of a circle by multiplying 4 cm by 0.07. [title] Subtract the diameter from the circumference of a circle to get the diameter. Ending2: [title] Do a degree equation to determine the diameter of the circle. [step] A degree equation is an equation defined by the diameter of a circle. Ending3: [title] If you know the circumference of the circle, divide it by π to get the diameter. [step] Π is equal to approximately 3.14 but you should use your calculator to get the most accurate results. Ending4: [title] Obtain a piece of scrap paper from a dollar store and create a circle using the standard radius measurements. [step] The radius is what is covered by the paper.

Answer format: ending1/ending2/ending3/ending4