jmc22
jmc22
26-05-2017
Mathematics
contestada
need help please asap!!!
Respuesta :
jonahdanner
jonahdanner
26-05-2017
radius (r)= 20= 20
central angle (θ)= 45degree = 0.78539816339745radian
If that doesn't make sense your answer is B. 15.7
Hope this helps!
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apologiabiology
apologiabiology
26-05-2017
that is circumfereince times degrees/360
circumfrence=2pir=2pi20=40pi in
degrees=45,
so
sectorlength=40pi times 45/360=1/8 times 40pi=5pi or about 15.707
B is answer
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