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help pleaseeeeee. Math nanaman po to ulit hhehe find the value of x and the measure of each angle of the given triangle

Help Pleaseeeeee Math Nanaman Po To Ulit Hhehe Find The Value Of X And The Measure Of Each Angle Of The Given Triangle class=

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Answer:

13. 2x+10=70°

x+20=50°

180-120=60°

Step-by-step explanation:

13. (2x+10)+(x+20)+(180-120)=180

( 3x+30)+(60)=180

3x+90=180

3x=180-90

3x=90

x=30

2x+10 =2(30)+10

=60+10

=70°

x+20=30+20

=50°

180-120=60°

70+50+60=180°

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