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OpenStudy (anonymous):
MEDAL
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OpenStudy (anonymous):
OpenStudy (anonymous):
Find the complementary angles (sum of angles in a straight line) First angle = 180 - (z - 13) = 193 - z Second angle = 180 - z Third angle = 180 - (z + 10) = 170 - z. Sum of interior angles in triangle = 180 = (193 - z) + (180 -z) + (170 -z) 180 = 543 - 3z 3z = 543 - 180 z = ?
OpenStudy (mertsj):
The sum of the exterior angles of any convex polygon is 360 degrees.
OpenStudy (anonymous):
i am solving right now
OpenStudy (anonymous):
is it 120 @Mertsj
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OpenStudy (mertsj):
z+z-13+z+10=360 Solve that equation.
OpenStudy (anonymous):
111 @Mertsj
OpenStudy (mertsj):
|dw:1373508808230:dw|
OpenStudy (mertsj):
Now add 3 to both sides and then divide both sides by 3
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