sthmj58
sthmj58
18-09-2017
Mathematics
contestada
What is the value of k?
Respuesta :
julie1110
julie1110
18-09-2017
The answer is approximately -457.9F
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ghanami
ghanami
18-09-2017
hello :
115°+X° = 180°
X° = 180° - 115°
X° = 65°
but : 65° +(4k+5)° +(6k+10)° = 180°.. ( sum angles in the triangle)
10K +80° =180°
10K =100°
k = 10°
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