The radius of one circle is 3.2 cm, the radius of the other is 76%. how much is the length of one circle longer than the other?

Find the radius of the second circle:

r [2] = 3.2 * 0.76 = 2.432 cm;

Let’s find the length of the first circle:

l [1] = 2 * P * r [1] = 2 * 3.14 * 3.2 = 20.096 cm; round up to thousandths;

Find the length of the second circle;

l [2] = 2 * P * r [2] = 2 * 3.14 * 2.432 = 15.273 cm;

Let’s find the difference between the lengths of two circles:

l [1] – l [2] = 20.096 – 15.273 = 4.823 cm.