Proving Lines Parallel Answers

Analyze the diagram below and answer the question that follows. If and , what is the measure of ?

Analyze the diagram below and answer the question that follows. Photo by Brian Moloney One way to build a staircase is to attach triangular blocks to an angled support, as shown above. If the support makes a angle with the floor, what must the measure of angle 1 be so that the steps are parallel to the floor? A. B. C. D. Please select the best answer from the choices provided

Determine the missing reason in the fifth line of the following proof. Given: Prove: Statements Reasons 1. 1. Given 2. 2. Alternate interior angles 3. 3. Given 4. 4. Transitive property 5. 5. _______________

Analyze the diagram below and complete the instructions that follow. Find the value of x for which .

Analyze the diagram below and answer the question that follows. Which statement allows us to conclude that line m and line n are parallel? A. B. C. D. Please select the best answer from the choices provided

Analyze the diagram below and answer the question that follows. If and is decreased by 30 degrees, how must be changed to keep the lines parallel?

Analyze the diagram below and complete the instructions that follow. Determine which lines are parallel, given that and . A. B. C. D. Please select the best answer from the choices provided

Analyze the diagram below and complete the instructions that follow. Given only the information in the diagram, determine if . If so, name the postulate or theorem used to support your conclusion.

Analyze the diagram below and answer the question that follows. If and is doubled, how must be changed to keep the lines parallel?