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Lesson 2-8

Lesson 2-8. Lesson Title Concept Checks. Check 1-A. Find m  1 if m  2 = 58 and m  JKL = 162. A. 32 B. 94 C. 104 D. 116. Click the mouse button or press the Space Bar to display the answers. Check 2. Concept Check.

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Lesson 2-8

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  1. Lesson 2-8 Lesson Title Concept Checks

  2. Check 1-A Find m1 if m2 = 58 and mJKL = 162. A. 32 B. 94 C. 104 D. 116 Click the mouse button or press the Space Bar to display the answers.

  3. Check 2 Concept Check QUILTINGThe diagram shows one square for a particular quilt pattern. If mBAC = mDAE = 20, and BAE is a right angle, find mCAD. A. 20 B. 30 C. 40 D. 50

  4. Check 3 In the figure, NYR andRYA form a linear pair,AXY and AXZ form a linear pair, and RYA andAXZ are congruent. Prove that NYR and AXY are congruent.

  5. Check 3 Statements Reasons 1. NYR and RYA, AXY and AXZ form linear pairs. 1. Given 2. NYR and RYA are supplementary. AXY and AXZ are supplementary. 2. If two s form a linear pair, then theyaresuppl.s. 3. Given 3. RYA  AXZ ? 4. ____________ 4. NYR  AXY Which choice correctly completes the proof? Proof:

  6. Check 3 A. Substitution B. Definition of linear pair C. s supp. to the same  or to  s are . D. Definition of supplementary s

  7. Check 4 If A and Z are vertical angles and mA = 3b -23 and mZ = 152 – 4b, find mA and mZ mA = 38 and mZ = 52 A. B. C. D. mA = 52 and mZ = 52 mA = 25 and mZ = 25 mA = 52 and mZ = 38

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