22-05-2017
Mathematics

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In triangle ABC, m<A = 8x +12, m<B = 5x+14, m<C = 2x +4. What is the m<A ? Need help....please

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Аноним Аноним

22-05-2017

triangle
m<A + m<B + m<C = 180
8x +12 + 5x+14 + 2x +4 = 180
15x + 30 = 180
15x = 180 -30
15x = 150
x = 10

m<A = 8x +12
m<A = 8(10) +12
m<A = 80 + 12
m<A = 92

answer
m<A = 92

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