Question

problem 18: (first taught in lesson 31) find x. after you enter your answer press go. x =

Explanation:

Step1: Find the interior - angle adjacent to 110°

$180 - 110=70$

Step2: Calculate the third interior - angle of the triangle

Let the third interior - angle be $y$. Using the angle - sum property of a triangle ($180^{\circ}$ for interior angles), $y=180-(70 + 60)=50$

Step3: Find the value of $x$

$x = 180 - 50=130$

Answer:

$x = 130$