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WELCOME!!!!. Get out your Homework from 2.2 Write down your homework for tonight S&S Unit 2 ACE 5-13 Get out a BOOK and DEAR!!! Warm Up Green Book Pg 91 #’s 51-59. WARM UP: Pg 91 #’s 51-59. 51) 3 52) -8 53) -12 54) 0 55)-16 56) 4 57) -12 58) 20 59) D. - PowerPoint PPT PresentationTRANSCRIPT
WELCOME!!!!
Get out your Homework from 2.2Write down your homework for tonight S&S Unit 2 ACE 5-13Get out a BOOK and DEAR!!! Warm Up Green Book Pg 91 #s 51-59WELCOME!!!!WARM UP: Pg 91 #s 51-5951) 352) -853) -1254) 055)-1656) 457) -1258) 2059) D
#. Date Brief Description1. 10-3S&S Problem 2.1 day 1/ ACE (1 a-e)10-4 S&S Problem 2.1 day 2/ ACE (14-15)10-5 S&S Problem 2.2 ACE 3, 16, 1710-6S&S Problem 2.3 ACE 5,6
BIG IDEA: Scale FactorsYou need: Calculator2.3 HandoutPage 25Lets Reflect on Problem 2.21) How does Zugs hat compare with the Mugs hat? The side lengths of Zugs hat are double or two times the length of Mugs hat.2) How many Mug hats can you put in Zugs Hat? 43) How do the perimeters compare between Mug and Bug? Mug to Glug? Mug to Lug? Only Mug to Bug the side lengths and perimeter tripled4) The hats of the set figure are all made from a triangle and a rectangle, but they are not similar. How can you tell if two triangles or rectangles are similar? Corresponding angles are congruent and the side lengths are changed by the same scale factor.
AScale FactorSF = 3Scale FactorSF = 1/2What is the Scale Factor of Figure A to Figure B? 1)
2) SF = 1/412 cm4 cm3 cm16 cm 5 cm7 cm25 cm35 cmSF = 5AABBWhich Rectangles are Similar? 18 cm12 cm22 cm33 cm26 cm39 cm18 cm12 cm10 cm15 cmABCDEALL of the rectangles are similar!!!ANSWER
Both are correct.Scale factor from L to J is 2.Scale factor from J to L is 1/2 or 0.5.
Rectangles J, M, and N are Similar Figures. C. Which triangles are similar? Scale Factor?
Triangles O, R, S are all similar figures.
1. Yes. Scale factor times original perimeter will equal the other perimeter.
2. Yes. Scale factor times Scale Factor times original area will equal the other area.
4x16,SF=2, 5x20, SF=5/21 x 3 right triangleAny square.
Answers will Vary !!!
Divide the length in the second figure by the corresponding length in the first figure.25512.5AB12.5 5 =2.55 2 = 2.5SF = 2.5Make sure your Notebook assignment sheet looks like this!!!
#. Date Brief Description1. 10-3S&S Problem 2.1 day 1/ ACE (1 a-e)10-4 S&S Problem 2.1 day 2/ ACE (14-15)10-5 S&S Problem 2.2 ACE 3, 16, 1710-6S&S Problem 2.3 ACE 5,6