Complete the following proof
Solve for the value of x:
x=
Determine the value of x in the isosceles triangle:
x =
Find the value of x:
Solve for y:
y =
Complete the following proof:
Solve for the value of x given AB is a midsegment.
Given AB is the midsegment, solve for y:
DE is the triangle bisector of triangle ABC.
The sum of the measures of the interior angles of a triangle is degrees.