Final answer:
To find the minimum framing material for Sue's circular picture, we can calculate the circumference of the frame using the formula: Circumference = 2 * π * radius, where the radius is half the diameter of the frame.
Step-by-step explanation:
The minimum framing material Sue would need is equal to the circumference of the circular picture, which is the same as the circumference of the picture's frame. The formula to calculate the circumference of a circle is:
Circumference = 2 * π * radius
Given that the diameter of the frame is 7.5 inches, we can calculate the radius by dividing the diameter by 2:
Radius = 7.5 inches / 2 = 3.75 inches
Now we can calculate the minimum framing material:
Circumference = 2 * π * 3.75 inches = 23.55 inches
Therefore, Sue would need at least 23.55 inches of framing material for her circular picture.