**Concept:** The question tests on the basics of Mensuration.

**Solution:**

Radius = 1 cm

Circumference = x = 2πr = 2π

Area = y = π * r^2 = π

Ratio of x : y = 2π : π = 2 : 1**Option A**

Modified on: Tue, 12 Oct, 2021 at 12:37 PM

**Concept:** The question tests on the basics of Mensuration.

**Solution:**

Radius = 1 cm

Circumference = x = 2πr = 2π

Area = y = π * r^2 = π

Ratio of x : y = 2π : π = 2 : 1**Option A**

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