Understanding Proofs And Constructions Unit Test 96%

Figure JKLM is a rectangle, so mKJM = mKLM = 90° and KJC MLC. Which reason justifies the statement that KLC is complementary to KJC?

In the diagram, what is the measure of WRS?

Line JM intersects line GK at point N. Which statements are true about the figure? Check all that apply.

A flowchart proof

Given that EB bisects ∠CEA, which statements must be true? Check all that apply.

In the diagram, what is mVSR?

The last step in a proof contains the

Angle RST is a right angle. Angle RSU has a measure of 25°. What is the measure of angle TSU?

Given: mTRV = 60° mTRS = (4x)° Prove: x = 30 What is the missing reason in step 3?

Two parallel lines are intersected by a third line so that angles 1 and 5 are congruent. Which statement is true about angles 3 and 5?

In which diagram do angles 1 and 2 form a linear pair?

What is the missing reason in the proof? Given: ∠ABC is a right angle, ∠DBC is a straight angle Prove: ∠ABC ≅ ∠ABD

In which diagram are angles 1 and 2 vertical angles?

In the diagram, which angles are vertical angles? Check all that apply.

Which statement is true about the diagram?

Which pair of angles are vertical angles?

Given that BA bisects ∠DBC, which statement must be true?

Given that D is the midpoint of AB and K is the midpoint of BC, which statement must be true?

Segment AB is congruent to segment AB. This statement shows the ______ property.

Which angle is a vertical angle with EFD?

A paragraph proof

Given: mEDF = 120°; mADB = (3x)°; mBDC = (2x)° Prove: x = 24 What is the missing reason in step 3?

Given that ∠CEA is a right angle and EB bisects ∠CEA, which statement must be true?

Marcus states that angle ORP and angle LRP are a linear pair. Which best describes his statement?

Triangle ABC is a right triangle. What is the relationship between angles A and B?