Mathematics: Find the measure of each angle in triangle abc. a=50-x b=9x-40 c=90 a) a=130 b=60 c=90 b) a=60 b=130 c=90 c) a=40 b=50 c=90 d) a=50 b=40 c=90 no guessing and show work you.

Find the measure of each angle in triangle abc.

Ответ:

lee9724

13.03.2022

recall that the sum of all interior angles in a triangle is 180°.

therefore, a + b + c = 180°

$\bf (\stackrel{a}{50-x})+(\stackrel{b}{9x-40})+\stackrel{c}{90}=180\implies 8x+100=180 \\\\\\ 8x=80\implies x=\cfrac{80}{8}\implies x=10\\\\ -------------------------------\\\\ (\stackrel{\stackrel{a}{50-x}}{50-10})=40\qquad \qquad \qquad \qquad \stackrel{\stackrel{b}{9x-40}}{9(10)-40}=50$

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Ответ:

laneycasey5375

14.11.2020

Mathematics

about 30

Step-by-step explanation:

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Find the measure of each angle in triangle abc. a=50-x b=9x-40 c=90 a) a=130 b=60 c=90 b) a=60 b=130 c=90 c) a=40 b=50 c=90 d) a=50 b=40 c=90 no guessing and show work you.

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