ABC26GN4531 · Area

Subject: General Aptitude · Chapter: Area · Exam: 2010 · Marks: · Difficulty:

The diameter of a circle is 3.5 cm. What is the circumference of the circle?

(a)11 cm

(b)22 cm

(c)38.5 cm

(d)45.2 cm

(e)None of these

Answer

Answer (as printed): A

Explanation

Radius $=\frac{3.5}{2} \mathrm{cm}=\frac{7}{4} \mathrm{cm}$. $$\text { ∴ } \text { Circumference }=\left(2 \times \frac{22}{7} \times \frac{7}{4}\right) \mathrm{cm}=11 \mathrm{cm} .$$

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