Question 217502
Let  x =  angle,,,,,,complement  = 90-x,,,,,,supplement =  180-x
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S=4+2c,,,,,180-x = 4 + 2(90-x)
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180-x = 4+180-2x
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x=4
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check,,,,x=4,,,c=90-4=86,,,,,s=180-4=176,,,,,176=4+2*86,,,ok
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