Find the length of the arc of a circle of diameter 4 meters subtended by a central angle of π radians.

9514 1404 393

   2π m ≈ 6.28 m

Step-by-step explanation:

Arc length is given by ...

  s = rθ . . . . . . . where r is the radius and θ is the central angle

For r = 2 m and θ = π, the arc length is ...

  s = (2 m)(π) = 2π m ≈ 6.28 m

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

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