General

General

Easy

Question

In the figure, arc has a length of 11.5. To the nearest integer, what is the value of x?

- 66
^{0} - 55
^{0} - 63
^{0} - 33
^{0}

^{0}^{0}^{0}^{0}Hint:

### s = 2 π r (θ/360°)

where,

s=length of arc

## The correct answer is: 66^{0}

### 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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