Question

What is the value of Y?

Answer 1

B is correct



the sum of the angles of a triangle is equal to 180. so:

`180 - (60 + 60) = 180 - 120 \\ = 60`

the answer is 60

Answer 2

B.
`60^(o)`

Step by step explanation:

We have been given a triangle and we are asked to find the value of y.

We can see that all the sides of our triangle equals to 12. This means our triangle is an equilateral triangle.

Since we know that measure of each angle of an equilateral triangle equals to 60 degrees, therefore, value of y is 60 degrees.

We can also find value of y by using sum of angles of a triangle. Since we know that sum of all angles of a triangle equals to 180 degrees.

`y+60^(o)+60^(o)=180^(o)`

`y+120^(o)=180^(o)`

`y=180^(o)-120^(o)`

`y=60^(o)`

Therefore, we can see that value of y is 60 degrees and option B is the correct choice.