3/21 Geometry Bell Ringer1. What type of triangle is

showing?

2. Solve for x

60°

x°

Homework: Finish Independent Practice for today.

3/21 News and Notes

• Hand in worksheet from Th/Fri

• No MVPs from last week, will combine with this week.

• Want to increase your mastery?!: THURSDAY!!!!!• Missing Tests

– 1st: None!– 7th: Kaneisha– 8th: None!

Bell Ringer Review

• The triangle is a RIGHT TRIANGLE

• Today’s Goal: Identify the pieces of right triangles, so that tomorrow we can start TRIGONOMETRY!

Intro to New Material – Vocab (3 min)

Opposite LegSide across from the given angle.

Adjacent LegSide next to the given angle.

HypotenuseSide across from the right angle.

θ

opp

θ

θ

adj

hyp

Intro to New Material

• Label the opposite leg, adjacent leg, and hypotenuse of the following right triangle with respect to θ:

θ

opposite

adjacent

hypotenuse

Intro to New Material

• Label the opposite leg, adjacent leg, and hypotenuse of the following right triangle with respect to θ:

θ

opposite

adjacenthypotenuse

30-60-90 Example

3 3

adj

opp

θ1

2

Hypotenuse: 2

Opposite:

Adjacent: 1

opp

hyp3

1

3

3

23

32

3

3

Guided Practice• Race up your Row!!!• The first person in each column will be in

charge of copying down the triangle on paper.

• First person labels hypotenuse, second labels adjacent, third labels opposite, fourth writes ratio opp/hyp, fifth writes adj/hyp and raises paper.

• Team distractions cost 1 point. • Inappropriate comments cost 1 point.• BONUS FOR REDUCING FRACTIONS!!!

Switch!

• First person draws and finds opp.

• 2nd labels opposite

• 3rd labels adjacent

• 4th checks and writes opp/adj

• 5th checks and writes opp/hyp

Independent Practice

• You now have the rest of class to finish the Independent Practice portion of your guided notes.

• EXIT TICKET WITH 5 MINUTES LEFT

ACT Question of the Day – EXIT TICKET!

Calculate with respect to θ in the

following right triangle:

A. 3/5B. 3/4C. 4/3D. 5/4E. 5/3

adjacent

opposite

θ

4

35

If you can, write down the trig ratio that we just calculated in this problem.