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22. The circumference of the circle below is

108 meters. If the interior angle n is 60°,
what is the length in meters of arc AB?
F) 5
G) 9
H) 11
J) 12
K) 18

User Ingvar
by
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1 Answer

3 votes

Answer:

The length of arc of circle with interior angle 60° is 18 meter

Explanation:

Given as :

The circumference of circle = C = 108 meters

The interior angle at center of circle = 60°

Let The length of arc = L

So ,

Length of arc = L =
(\Pi * radius* \Theta )/(180^(\circ))

circumference of circle =
2* \Pi * radius

Or, 108 =
2* \Pi * radius

∴ r =
(108)/(2\pi )

So, Length of arc =
((\Pi * \Theta )/(180)) * ((108)/(2* \Pi ))

Or, L =
((\Pi * \60 )/(180)) * ((108)/(2* \Pi ))

Or, L =
(36)/(2) = 18 m

Hence The length of arc of circle with interior angle 60° is 18 meter Answer

User MenorcanOrange
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