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Mathematics 8 Online
OpenStudy (anonymous):

g

OpenStudy (anonymous):

The sum of the measures of the angles is : \[180^\circ\] So : \[5n+5+40+15=180\] Solve this equation !

OpenStudy (anonymous):

n=24 because (180-40-15-5)/5 = 24... total angle of triangle is 180

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