Question

1c is equal to
(A) 57.30°
(B) 573°
(C)180°
(D) 360°​

Answer 1

Answer:

57.30° is the answer of 1c

Answer 2

Answer:

The correct answer is Option A i.e. 57.30°.

Explanation:

i) One radian, also written as 1c is defined as the angle subtended at the center of a unit circle by a unit arc length.

ii) The radius of this unit circle is 1 unit.

iii) Hence, the circumference of the unit circle is 2π units.

iv) Hence, 360° corresponds to 2π radians.

v) Hence, 360/2π corresponds to 1 radian or 1c.

360/2π = 57.30°

vi) Hence, the correct answer is Option A i.e. 57.30°.

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