Finding the measure for each side of an isosceles triangle

The video tutorial explains the properties of an isosceles triangle, focusing on solving for angle measures and side lengths using algebraic equations. The instructor guides students through setting up and solving an equation to find the value of X, then uses this value to calculate the lengths of the triangle's sides. The lesson concludes with a verification of the calculations to ensure understanding.

What is the length of side MN in the triangle?

How do you verify the calculated length of the sides?