Question

Use the triangle sum theorem to find the missing angle measure

Answer 1

The triangle sum theorem states that the interior angles of a triangle added together must be equal to 180°.

Then, according to this, we can say that

`x+23+10=180`

Solve the equation for x

`\begin{gathered} x+33=180 \\ x=180-33 \\ x=147 \end{gathered}`