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need anwer quick please

Guest Jun 21, 2018
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Arc Length = (x * π/180) × r 

9.7 =(x * pi/180) * 9, solve for x

 

Solve for x:
9.7 = (π x)/20

Rewrite the left hand side of the equation.
9.7 = 97/10:
97/10 = (π x)/20

Reverse the equality in 97/10 = (π x)/20 in order to isolate x to the left hand side.
97/10 = (π x)/20 is equivalent to (π x)/20 = 97/10:
(π x)/20 = 97/10

Solve for x.
Divide both sides by π/20:
x = 194/π =61.75 =~62 degrees

Guest Jun 21, 2018

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