It has a triangle equal to 180 degrees and I don’t understand this, can you help me?
Here we are formulating an equation to solve for
We know that the interior angles of any triangle adds up
We have three angles given:
This means that :
Now we collect like terms to simplify.
Now we solve like any linear equation by isolating the variable on one side of the equation with the constant on the other.
Here we must subtract
We want one
Here we divide by
We can check if we are right by putting our value of
Triangle sum theorem states that all angles in a triangle must add up to
You have already applied the triangle sum theorem which states that all 3 angles in a triangle add up to