Question

What is the value of y??

Answer 1

Hey there!!

Remember :-

... The sum of all angles in a triangle is 180.

Hence,

... y + y + 30 + 40 = 180

... 2y + 70 = 180

... 2y = 110

... y = 110/2

... y = 55.

The value of y is 55.

Hope it helps!!

Answer 2

y=55

Explanation:

First take note a triangle is always equal to a total of 180 degrees

now setup the equation.

y+40+y+30=180

rid of alike terms

70+2y=180

Now subtract 70 from both sides

2y=110

Now divide both sides by 2

y=55