1. 3/8 Geometry Bell Ringer Simplify Solve for y:
Homework: Due FRIDAY!!!!
Pg. 37 (#1 – 7)
Pg. 504 (#1 – 6)
Pg. 492 (#1 – 6) Bonus (7-9)
25 in
Y in
7 in

2. 3/8 News and Notes Perfection: 8th Period Missing Quizzes:
1st: Brian, Johnny
7th: Kaneisha, Niesha, Leslie
8th: Allan, Desirae, Diego, Jasmine Z
HW Due Friday again.
Unit Test next Tuesday!

3. MVPs Someone who takes risks in class
Someone who goes beyond the call of duty and challenges themselves and others
Someone who helps the entire class
1st Period: Katherine
7th: Selena
8th: Rosendo

4. Today’s Goal
Make the tables from Thursday make sense for triangle and triangle.

5. The Triangle
Could also be known as the Right Isosceles Triangle. Why?!
= 90.
90/2 = 45.
What is the relationship between the legs and the hypotenuse?
Legs are congruent, and just multiply the legs by √2 to get the hypotenuse.

6. Example x Solve for x, y and z z 180 – 90 – 45 = x 5 X = 45
 Now we have confirmed z 5
45° y

7. Example x Solve for x, y and z Y = 5 Congruent Legs Z = 5√2
Multiply legs by √2 to get hyp. z 5
45° y

8. The 30-60-90 Triangle If a = 1cm, b = √3cm, find c 12 + (√3)2 = c2
c = 2 cm.

9. Describe the relationship in words
What’s the relationship between a and b?
Whatever a is, just multiply by √3 (22√3)
What’s the relationship between a and c?
If a = 2, c is double (4)
If c = 4, a is half (2)

10. Example Solve for x, y, and z x° 180 – 90 – 60 = x X = 30° z cm y cm
 Now we know x°
z cm
y cm
60°
5 cm

11. Example Solve for x, y, and z Y = 5√3 cm x° Multiply a by √3 z cm y cm
Double the value of a x°
z cm
y cm
60°
5 cm

12. Independent Practice Everyone must answer the key questions
You must then answer your choice of 6 problems from the two levels.

13. Exit Ticket
Find the values for a and b, given the value of the hypotenuse:
30°
12 m b
60° a