Triangle Angle Theorems

Question 1

Which properties belong to all isosceles triangles? Check all that apply.The base angles are congruent.All three angles are congruent.The two sides opposite the base angles are congruent.All three sides are congruent.The bisector of the vertex angle is the perpendicular bisector of the base.

Revolt · Accepted Answer

A: The base angles are congruent.; C: The two sides opposite the base angles are congruent.; E: The bisector of the vertex angle is the perpendicular bisector of the base.

Question 2

What is the value of x?

Revolt · Accepted Answer

B: 70

Question 3

Which fact helps you prove the isosceles triangle theorem, which states that the base angles of any isosceles triangle have equal measure?

Revolt · Accepted Answer

D: 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.

Question 4

CD bisects ∠ACB. Which statements must be true? Check all that apply.

Revolt · Accepted Answer

A: AD = BD; C: m∠ACD = m∠BCD; D: m∠CDA = m∠CDB

Question 5

Question 5

Revolt · Accepted Answer

111296

Triangle Angle Theorems Answers

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