We can compute the diameter and the circumference of the circle using the given radius, $r = 4.7 \, \text{cm}$.

Step 1: Calculate the Diameter

The formula for the diameter $d$ of a circle is: $d = 2r$ Substituting $r = 4.7 \, \text{cm}$: $d = 2 \times 4.7 = 9.4 \, \text{cm}$

Step 2: Calculate the Circumference

The formula for the circumference $C$ of a circle is: $C = 2\pi r$ Using $\pi \approx 3.14159$ and $r = 4.7$: $C = 2 \times 3.14159 \times 4.7 \approx 29.5309 \, \text{cm}$ Rounding to the hundredths place: $C \approx 29.53 \, \text{cm}$

Final Table:

Radius (cm)	Diameter (cm)	Circumference (cm)
4.7	9.4	29.53

Would you like to go into further detail or explore related concepts? 😊

---

Five Related Questions:

1. What is the formula for calculating the area of a circle using the radius?
2. How does the circumference change if the radius is doubled?
3. Can you derive the formula for the circumference of a circle?
4. How can you approximate $\pi$ using real-world measurements of a circle?
5. What happens to the circumference if the diameter is increased by 50%?

Tip:

To remember the formulas for circles, think "D for Diameter means Double the Radius," and "Circumference starts with C, so Circle Around = 2πr."