Investigating Trigonometry and Algebraic Topics On-Line
Henrico County Public Schools
Lesson Materials
Warm-Ups
Warm-Up
Activities & Notes
Lecture Notes (PPT)
Activity: Ambiguous Case (PDF)
Amb. Case Summary (PDF)
Practice
HW 1 (No Ambiguous) (PDF)
HW 2 (Ambiguous) (PDF)
HW 3 (Mixed) (PDF)
Self-Quiz
Help Links
Sketchpad
C.a.R.
GeoGebra
August 2006
Lesson 10-1: Law of Sines
Objective:
The student will be able to solve triangles using the Law of Sines and identify when the situation calls for the Law of Sines.
- To change the size of angle A, move point C.
- To change the size of segment a move point B.
- Move point B so that a triangle is formed.
- What is the relationship between a, b and h when a triangle is not formed?
- What is the relationship between a, b and h when a triangle is formed?
- Keeping the measures of a, b and h constant, can more than one triangle be formed?
- What is the relationship between a, b and h?
- Do the relationships remain the same when ∠ A is obtuse?
IES: Online notes on the Law of Sines. IES