can someone please help me figure this one problem out??? im stuck...
How many degrees are in the "Animation" sector of the graph? Round your answer to the nearest degree.

Question

anonymous · Answer

attachment

anonymous · Answer

answer choices are:
68

78

97

117

anonymous · Answer

Are the numbers the value of those parts of the circumference?

anonymous · Answer

what do you mean?

anonymous · Answer

Is 20 units the size of the arc?

anonymous · Answer

yes

anonymous · Answer

yes

anonymous · Answer

If that is the size of the arc, Circumference = $$2pir$$ 140 = $$2pir$$ r = 140 / $$2pi$$ r = 22.281units Then use this link, http://www.ajdesigner.com/phpcircle/circle_arc_length_s.php It explains well. Substitute 68 degrees and you;ll get 26.44 which is pretty close to 27.

anonymous · Answer

And oh yeah, I know this does not directly solve your problem but, the webpage has a formula that if rearranged will solve it.