3/18 Bell Ringer

1
3/18 Bell Ringer

• Find the three trig ratios for angle G
• sin(G) ??
• cos(G) ??
• tan(G) ??

T
Homework
Grab todays guided notes and a calculator from
the front of the room!
2
News and Notes

• Perfection Award 7th and 8th Period
• ACT Workshop today after school in Rm 218
• When are test corrections due?
• How important is today?!

3
3/2 Agenda

• I CAN use trig ratios to find missing sides of a
  right triangle when given one angle and one side.
• 1. Intro to New Material
• 2. Guided Practice
• 3. Independent Practice
• 4. ACT Question of the Day

4
New Material Example 1

• Solve for x
• Know Angle 75
• Hypotenuse 30
• Want to Know Adjacent
• What trig ratio?
• Cos adj / hyp

5
New Material 2
y
55
x
10

• Know Angle 55 and opp side 10
• Want to Know Adj. Hyp.

6
How old is Mr. Chrischilles?

• The answer to this question is my age

B
48
30
7
1
B
2
Y
45
48
9
30
3
4
15
W
5
15
25
X
8
Independent Practice

• You now have the rest of class to work on the
  independent practice on the back of todays
  guided notes.
• IF YOU DO NOT HAVE A CALCULATOR go through the
  process until you get to the last step at this
  point just write what you would plug into your
  calculator!

9
Exit ACT Question of the Day

• Which of the following shows how to solve for y?
• A.
• B.
• C.
• D.

Homework Finish Independent Practice