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CUET
General Test
Quantitative Reasoning
Mensuration: 2D
If double of the circumference and area of a circle are numerically equal, then the diameter of the circle is?
4
8
10
12
2 × Circumference = Area of circle
⇒ 2 × 2 \(\pi \) r = \(\pi \) r2
r = 4 and diameter = 8