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. If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is (a) 4 units (b) n units (c) 8 units (d) 2 units

. If the area of a circle is numerically equal to twice its circumference, then the diameter of the circle is
(a) 4 units
(b) n units
(c) 8 units
(d) 2 units

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8740 Points
4 months ago
Answer: c Explaination: (c) πr² = 2πr × 2 ⇒ r = 4 ⇒ 2r = 8 units

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