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10/19/15 = GEOMETRY………………………………………….………… HW WAS - p.164 1-18 all SAW *YOU ARE ALWAYS SUPPOSED TO CORRECT ANY HW PROBLEM THAT YOU GOT WRONG – EVERY DAY/NIGHT Give me your spiral while we listen to our prayer song – then = test 1ST PERIOD IS NOT FOR DOING HW – IT IS TIME TO: – CHECK EVENS - ASKING ? AND CLARIFYING AND - DOING CORRECTIONS – YOU MUST WORK AS A GROUP AND ASK EACH OTHER QUESTIONS BEFORE YOU GO TO MR. REICH FOR HELP – YOU MUST CHECK ODDS AT HOME – WHERE YOU DO YOUR HW. GEOMETRY CLASS NEEDS TO SIT TOGETHER IN 1ST PERIOD AND DO THIS. YOU MUST BE ABLE TO SHOW HIM ON PAPER WHERE YOU TRIED IT – BEFORE YOU CAN ASK FOR HELP – ALL 3 MUST SHOW IT FIRST!! Let’s grade your HW: p.164 1-18 all GRADE: each problem = - EACH 1. skew = the nots = not parallel and not intersecting … and not coinciding = skew means they can never touch! not intersect & not parallel 2. perpendicular the x-axis and the y-axis are also perpendicular! 3. parallel 4. parallel 5. perp. 6. conclusion: <FGJ and <GJH are complementary – and/or – m<FGJ + m<GJH = 90 degrees 7. x = 38 Given: line c is perp. To line d Tells you: a right angle lives at their intersection So: 2x + 14 = 90 Solve for x: 2x = 90 – 14 2x = 76 /2 /2 X = 38 8. AI 9. CORR 10. CORR 11. AE 12. SSI 13. CORR 14. m<1 = 108 deg. Corr angles postulate m<2 = 72 deg. SSI angles theorem m<3 = 72 deg. Linear Pair Postulate 14. at board… 15. y = 22 Given: 67 deg; 3y+1 on your drawing Relationship between those two pieces of information? AE – so – AE angles are congruent so: 67 = 3y + 1 67-1 = 3y 66 = 3y 66/3 = 3y/3 22 = y 16. y = 32 17. yes – because in a plane if two lines are perp to the same line then they are parallel to each other = theorem 3.12 18. words = moved 6 units right and 2 units up Coordinate notation = (x,y) (x+6 , y+2) Hw = p.165 saw = wtp & dtp & work it TRANSLATIONS ARE … one kind of Transformation! In Math – to move from one place on a graph to another - …like a slide… COORDINATE NOTATION Point (x,y) If we translate that point then the new point needs a new name… In relation to the old name… Point (x-3 , y+4) (x,y) (x-3, y+4) these are like directions! Take point (x,y) and go -3 left 3 for x and – go +4 up 4 for y Translation – the figure must retain its original size and shape! SAW so if there is any work (MATH) that can be done – I want to see it – on your paper! *HW = Hw = p.165 saw = wtp(write) & dtp(draw) & work it TEST IS NEXT THURSDAY ON CH 3! SAW: SHOW ALL WORK – means: 1. WTP = write the problem & CIRCLE THE PROBLEM # 1a. DTP – draw the problem if applicable 2. SAW = show all work 3. find then RECORD YOUR ANSWER 4. SKIP A LINE 5. DO NEXT PROBLEM HINT = DO THE ODDS FIRST! DO THEN CHECK THE CORRECT!