General
General
Easy
Question
In the figure, arc 
has a length of 11.5. To the nearest integer, what is the value of x?
- 660
- 550
- 630
- 330
Hint:
s = 2 π r (θ/360°)
where,
s=length of arc
The correct answer is: 660
s = 2 π r (θ/360°)------------(i)
here,
r=10
s=11.5
θ=x
put these values in eq (i)
11.5= 2*3.14*10 (x/360°)
on solving,we get
x=66
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