Isosceles Triangles Assignment and
Quiz
Which properties belong to all isosceles triangles? Check all that apply. - correct
answer The base angles are congruent.
The two sides opposite the base angles are congruent.
The bisector of the vertex angle is the perpendicular bisector of the base.
What is the value of x? - correct answer 70
Which fact helps you prove the isosceles triangle theorem, which states that the
base angles of any isosceles triangle have equal measure? - correct answer If one
angle of a triangle is larger than another angle, then the side opposite the larger
angle is longer than the side opposite the smaller angle.
CD bisects ∠ACB. Which statements must be true? Check all that apply. - correct
answer AD = BD
m∠ACD = m∠BCD
m∠CDA = m∠CDB
What is the length of PR? - correct answer 40
The vertex angle of an isosceles triangle measures 42°. A base angle in the triangle
has a measure given by
(2x + 3)°. What is the value of x? What is the measure of each base angle? - correct
answer x = 33
Each base angle measures 69°.
What is the measure of ∠NLM?
