Question

the angles of a triangle are (x+20 degrees ), (2x+30 degrees ),(3x+40 degrees ) then '
answer is 15 degrees i want sum​

Answer 1

Answer:

therefore the value of x is 15

Step-by-step explanation:

we know sum of all angles in a triangle is 180

x+20+2x+30+3x+40=180

6x+90=180

x=90/6

x=15

Answer 2

Step-by-step explanation:

$x + 20 + 2x + 30 + 3x + 40 = 180 \\ 6x + 90 = 180 \\ 6x = 180 - 90 \\ 6x = 90 \\ x = \frac{90}{6} \\ x = 15$