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Manipal MET2019MathematicsTrigonometric Ratios & Identities

The radius of the circle whose arc of length 1,5 ~cm makes an angle of 3 4 radian at the centre, is

Options

  1. A10 cm
  2. B20 cm
  3. C11 1 4 ~cm
  4. D22 1 2 ~cm

Correct answer

B. 20 cm

Step-by-step solution

Given that, arc =15 ~cm . aligned & = 3 4 radian & We know that, Angle = Arc Radius & Radius = Arc Angle = 15 4 3 =20 ~cm aligned

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