Question

Find the value of x in the triangle shown below.=2°31770

Answer 1

The sum of all the angles in a triangle is always 180°.

We can write the equation and solve for the missing angle:

`31^o+77^o+x=180^o`

Solving for x:

`\begin{gathered} x=180^o-31^o-77^o \\ \\ x=72^o \end{gathered}`

The measure of the unknown angle is 72 degrees.