Question : If the circumference of a circle is 220 cm, then what is its radius?
Option 1: 26 cm
Option 2: 25 cm
Option 3: 35 cm
Option 4: 40 cm
Answer (1)
23rd Jan, 2024
Correct Answer: 35 cm
Solution :
Let the radius of the circle be $r$.
Circumference of circle = $2\pi r$
⇒ $220=2 × \frac{22}{7} × r$
⇒ $r=\frac{220×7}{22 × 2}$
$\therefore r=35$ cm
Hence, the correct answer is 35 cm.
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