Find the circumference and length of the darkened part of the arc. Leave answer in terms of pi

Circumference=16pi

Arc Length=8pi

Step-by-step explanation:

Circumference formula=2(pi)(r), or d(pi)

The arc is only half of that in this case, therefore you would only pi(r) or 1/2(d)(pi).

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the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.