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3/1 Geometry Bell Ringer

3/1 Geometry Bell Ringer. Simplify : Solve for x:. Mr. Chrischilles will hand back tests when everyone is quietly working on bell ringer. Homework: Due Friday – pg 481 (1-6, 12) & pg 486 (1-8) BONUS Qs: pg 481 #13-16. 3/1 News and Notes. Perfection Award: 4 th Period QUIZ FRIDAY!.

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3/1 Geometry Bell Ringer

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  1. 3/1 Geometry Bell Ringer Simplify: Solve for x: Mr. Chrischilles will hand back tests when everyone is quietly working on bell ringer Homework: Due Friday – pg 481 (1-6, 12) & pg 486 (1-8) BONUS Qs: pg 481 #13-16

  2. 3/1 News and Notes • Perfection Award: 4th Period • QUIZ FRIDAY!

  3. Use the Pythagorean Theorem to… • Today: Is it a right triangle and finding hypotenuse. • Tomorrow: Finding length of one of the legs.

  4. 5 2 Types of Examples • Example 1: Find the missing side. • What is the length of c? • 22 + 32 = c2 • 4 + 9 = c2 • 13 = c2 NOW TAKE SQUARE ROOT OF BOTH SIDES • √13 = √c2 • √13 = c c 2 3

  5. 3 Example #2: What type is it? • What type of triangle is created with these three sides? • a = 5, b = 7, c = 9 • 52 + 72 92 • 25 + 49 81 • 74 < 81 c2 is bigger, so… • OBTUSE!!!

  6. Guided Practice – Must Get Stamped before you can move to Indep. Practice • What is the length of the diagonal of a 4in x 2in rectangle? • Step 1: Draw a picture • Step 2: Set up equation 22 + 42 = C2 4 in. 2 in. C in.

  7. Step 3: Solve for c: • 22 + 42 = C2 • 4 + 16 = C2 • 20 = C2

  8. Now simplify your answer • Step 4: Simplify

  9. Exit Ticket • Solve for the missing side of this right triangle: 7 cm Homework: pg 481, 486: #1-6 Due Thursday! 24 cm C cm

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