Erica spent $115 on school she actually spent $82.50 what is Erica's percent of error
2 answers:
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Angle = 36 degrees = 
= 
now, radius = 10 cm
so arc = radius x angle = 10 x pi/5 = 2pi = 6.28 cm
now, radius = 10 cm
so arc = radius x angle = 10 x pi/5 = 2pi = 6.28 cm
Hey i think the only mistake i caught was when you put 3 points under the line mark instead of only needing 2.
Possibly another mistake at 3a, Only 2 points (but i could be wrong)
Possibly another mistake at 3a, Only 2 points (but i could be wrong)