Question

Find x given ABC is a triangle A = ( x+10)° B = ( 3x+5)° C =( 2x+15)°
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Answer 1

Step-by-step explanation:

In a triangle A+B+C=180

(x+10)+(3x+5)+(2x+15)=180

x+10+3x+5+2x+15=180

6x+30=180

6x=180-30=150

x=150/6=25

Answer 2

Answer:

sum of all angles of a triangle =180°

Step-by-step explanation:

(x+10°)+(3x+5°)+(2x+15°)=180°

x+10°+3x+5°+2x+15°=180°

6x+30°=180°

6x=180°-30°

6x=150°

x=150°/6

×=25°