Exercise 2 Page 443

We want to find the value of x in the given triangle.

To find the value of x, we will first recall a key piece of information!

Angle Sum of a Triangle

The sum of the measures of the interior angles of a triangle is 180^(∘).

With this rule, we can write an equation connecting the measures of the angles of our triangle. x^(∘)+ 62^(∘)+ 65^(∘)=180^(∘) Let's solve the equation and find the value of x. For simplicity, we will not write the degree symbol.