Chapter 6.5, Problem 1ST2

To determine

To name: the longest side of the triangle.

Answer to Problem 1ST2

The longest side is $\overline{XY}$ .

Explanation of Solution

Given information:

In $\Delta XYZ$ , $m\angle X=50°,m\angle Y=60°$ , and $m\angle Z=70°$

Calculation:

Consider the following data:

In $\Delta XYZ$ , $m\angle X=50°,m\angle Y=60°$ , and $m\angle Z=70°$

The figure is shown below:

  

Here, $m\angle Z$ is greatest angle.

And the side opposite to the greatest angle is greatest.

Therefore, the longest side is $\overline{XY}$ .