COMEDK · Maths · 12. Circle
The radius of a circle is 5 cm. A chord of this circle is equal to the radius. Then the length of the arc of this chord is:
- A \(3.14 \ cm\)
- B \(2.62 \ cm\)
- C \(5.24 \ cm\)
- D \(4.1 \ cm\)
Answer & Solution
Correct Answer
(C) \(5.24 \ cm\)
Step-by-step Solution
Detailed explanation
Let the radius of the circle be \(r = 5\) cm. Since the length of the chord is equal to the radius, the triangle formed by the chord and the two radii connecting its endpoints to the center is an equilateral triangle. Therefore, the angle subtended by the chord at the center is…
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