3/21 geometry bell ringer
DESCRIPTION
3/21 Geometry Bell Ringer. 60 °. x °. What type of triangle is showing? Solve for 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!!!!! - PowerPoint PPT PresentationTRANSCRIPT
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.