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Warm up. Take out a piece of paper and write these sentences in ‘ conditional ’ form…. That is, using ‘if’ and ‘then’ Example: Mr. Harms has back hair. If it is Mr. Harms, then he has back hair. On a hot day the sun is out. If it is a hot day, then the sun is out. Boys have cooties.
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Warm up Take out a piece of paper and write these sentences in ‘conditional’ form…. That is, using ‘if’ and ‘then’ Example: Mr. Harms has back hair. If it is Mr. Harms, then he has back hair. On a hot day the sun is out. If it is a hot day, then the sun is out. Boys have cooties. If it is a boy, then it has cooties. Three missing assignments wins me a trip to ASE If I have 3 missing assignments, then I win a trip to ASE. Torrington is in Wyoming. If it is Torrington, then it is in Wyoming. Mr. Epler is the principal of THS If it’s Mr. Epler, then it is the principal of THS.
Secret code for conditional statements p q If then p is the hypothesis, q is the conclusion. The words ‘if’ and ‘then’ are NOT included in the hypothesis or conclusion. conditional statement: If she is smart and beautiful, then she is Mrs. McAnelly. hypothesis: she is smart and beautiful conclusion: she is Mrs. McAnelly BEHOLD:
Let’s find the angles together. What’s that I smell?
Do this new quiz. It’s on the table • Mark all the given information • Moving around the puzzle, and using your brain, find all the measurements you know how to find: • Linear pairs • Vertical angles • Triangle sum theorem • Linear ‘triple’
Squares2 and square roots √ Just like adding and subtracting are ‘opposites’ Just like dividing and multiplying are ‘opposites’ Squares and squareroots are opposites… But you KNEW that!! That’s algebra!! If a number is a perfect square, then the square root is an integer. √49 = + 7 √25 = + 5 √81 = + 9 If a number is not a perfect square, then the square root is irrational…it is not a whole number and it can not be written as a fraction. √17 ≈ +4.123 √97 ≈ + 9.8489 exact answers approximate answers
Let’s try approximating… Approximate: √32 = √60 = √26 = 5.7 7.7 5.1 wonderful!
has side lengths of 10, what is the area? has an area of 36, what is the measure of each side? 10 10 If a square… 6 100 u2 6 units 6 check your guess with the calculator What if the area of the square is 66 ft2? What would the length of each side be? What if the area of the square is 50 ft2? What would the length of each side be? 8.1? 8.2? check it with your calculator
A secret about side lengths of triangles The largest side of a triangle has to be GREATER THAN the sum of the other two sides. Can a triangle have the following side lengths? 3 cm, 5 cm, and 10 cm 4 cm, 9 cm, and 12 cm 2 cm, 4 cm, and 5 cm 3 cm, 5 cm, and 8 cm yes no no no
Had enough? Your assignment: pg 115-120: 100-103, 109-120