# The first circle has a radius of 5 cm. And the second circle has a diameter of 8 cm.

December 27, 2020 | education

| **The first circle has a radius of 5 cm. And the second circle has a diameter of 8 cm. Which circle has a larger diameter and how many centimeters is larger?**

To solve this problem, remember that the diameter is equal to the sum of two radii. d = 2 * r = r + r. Knowing that the radius of the first circle is 5 cm, we find its diameter.

d = 2 * 5 = 10 cm

The diameter of the second circle is 8 cm, let’s compare them.

10cm> 8cm

10-8 = 2 cm

Answer: the diameter of the first circle is 2 cm larger.

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