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Plss help me!!

Find the length of the arc.

Plss help me!! Find the length of the arc.-example-1
User Stig
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Answer:


(5\pi )/(2)\:ft (Option D)

Explanation:

GIVEN :-

  • Angle subtended by the arc at center (θ) = 90°
  • Radius of the circle = 5 ft.

TO FIND :-

  • Length of the arc

GENERAL FORMULAE TO BE USED IN THIS QUESTION :-

Lets say an arc subtends ∠θ at the center of the circle whose radius is 'r'.


=> Length \; of \; the \; arc = \theta * (\pi r)/(180)

SOLUTION :-

Length of the arc =
\theta * (\pi r)/(180) = 90 * (5\pi )/(180) =(5\pi )/(2)

User KimKulling
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