Maths-
General
Easy
Question
The number of radians in a 720-degree angle can be written as 
, where a is a constant. What is the value of a ?
The correct answer is: 4
HINT – Use the fact that p = 180°
SOLUTION – We know that p = 180° ---- (1)
We can write 720° = 4 
180°
720° = 4 
( - from (1) )
720° = 4
Comparing with the expression given in the question,
We get, a = 4
So, answer is 4
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