Respuesta :

shimanekgare

Answer:

r = 10 mm

Step-by-step explanation:

Formula of a quater circle perimeter: P = ( [tex]\frac{\pi }{2}[/tex] + 2 )r

You substitute the given perimeter then you'll have something that looks like this : 35.7 = ([tex]\frac{\pi }{2}[/tex]+2)r

Then you divide both sides by ([tex]\frac{\pi }{2}[/tex]+2) to get the answer

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