Triangle def is an isosceles, so def = dfe.

angle def measures 75°. what is the measure of angle cfd?

105°

125°

150°

165°

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

An equation where variables are used to represent known values—function notation true or false

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)