a home has a triangular backyard the second angle of the triangle is 7 degrees more than the first angle the third angle is 13 degrees more than three times the first angle find the angles of the triangle yard.​

Respuesta :

Answer:

180

Step-by-step explanation:

let the first angle=x

second angle=x+7

third angle=2x+13

x+x+7+2x+13=180