Start learning →

A full turn of 360 degrees equals how many radians?

Aπ
B4π
Cπ/2
D2π
Answer & Solution
Correct answer: D. 2π
The circumference of the unit circle is 2 pi, so a full turn is 2 pi radians.
Practise this question with Quill — RRB NTPC →

Keep practising Geometry and Trigonometry

Browse all Geometry and Trigonometry questions for RRB NTPC, or explore more Mathematics topics.

Start a Geometry and Trigonometry lesson →