Glencoe Math: Course 3, Volume 2
GM
Glencoe Math: Course 3, Volume 2 View details
Chapter Review

Exercise 2 Page 443

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

53

Practice makes perfect

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

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.
x + 62 + 65 = 180
Solve for x
x + 127 = 180
x = 53