Answer: 8cm
Step-by-step explanation:
If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter.
7 + 68 = 75
5 x 15 = 75
6 + 69 = 75
3 + 72 = 75
$3.15 because 5,25 divided by 5 is 1.05 times 3