The Law of Sines Day 1: Areas and AAS

Slides:



Advertisements
Similar presentations
Solving Right Triangles Essential Question How do I solve a right triangle?
Advertisements

Chapter 6 Additional Topics in Trigonometry Copyright © 2014, 2010, 2007 Pearson Education, Inc The Law of Sines.
Chapter 6 Trigonometry- Part 3. Aim #6.1:How do we apply the Law of Sines? An oblique triangle is one that does not contain a right angle.
Section SOLVING OBLIQUE TRIANGLES
7/3/ : The Law of Sines Expectation: G1.3.2: Know and use the Law of Sines and the Law of Cosines and use them to solve problems. Find the area.
Starter a 6 c A 49° 96° 1.Use the Law of Sines to calculate side c of the triangle. 2.Now find the Area of a Triangle.
Law of Sines Given the triangle below … … the law of sines is given by …
Solve Right Triangles Ch 7.7. Solving right triangles What you need to solve for missing sides and angles of a right triangle: – 2 side lengths – or –
Geometry Notes Lesson 5.3B Trigonometry
Law of Sines. Triangles Review Can the following side lengths be the side lengths of a triangle?
2-24 Honors Geometry Warm-up
13.4 L AW OF S INES 13.5 L AW OF COSINES Algebra II w/ trig.
Law of Sines
Applications of Trigonometric Functions
5.5 Law of Sines. I. Law of Sines In any triangle with opposite sides a, b, and c: AB C b c a The Law of Sines is used to solve any triangle where you.
6.1 Law of Sines. Introduction Objective: Solve oblique triangles To solve: you must know the length of one side and the measures of any two other parts.
Section 9-3 The Law of Sines. Recall…  When there are several methods for solving a problem, a comparison of the solutions can lead to new and useful.
Class Work Let’s start with some review!! 1.Solve for x. x 7 42 
Lesson Quiz Lesson Quiz Lesson Presentation Lesson Presentation Lesson 9.5 Apply the Law of Sines Warm-Up Standard Accessed: Students will prove, apply,
Warm-Up 10/15 1. H PSAT Tomorrow 10/16, you will need to bring your own calculator.
Section 4.2 – The Law of Sines. If none of the angles of a triangle is a right angle, the triangle is called oblique. An oblique triangle has either three.
Lesson 13.1 Right Triangle Trigonometry
Solve Right Triangles Ch 7.7. Solving right triangles What you need to solve for missing sides and angles of a right triangle: – 2 side lengths – or –
9-3 L AW OF S INES. L AW OF S INES A B Given an oblique triangle (no right angle) we can draw in the altitude from vertex B Label the altitude k and find.
Law of Sines & Law of Cosine. Law of Sines The ratio of the Sine of one angle and the length of the side opposite is equivalent to the ratio of the Sine.
TRIGONOMETRY Lesson 2: Solving Right Triangles. Todays Objectives Students will be able to develop and apply the primary trigonometric ratios (sine, cosine,
Law of Sines. Question ▪ How would you solve for the missing side of this triangle? ▪ How would you solve for the missing side given this triangle? 6.
A C M If C = 20º, then cos C is equal to: A. sin 70 B. cos 70 C. tan 70.
Holt McDougal Geometry 8-5 Law of Sines and Law of Cosines 8-5 Law of Sines and Law of Cosines Holt GeometryHolt McDougal Geometry.
Holt Geometry 8-5 Law of Sines and Law of Cosines Warm Up 1. What is the third angle measure in a triangle with angles measuring 65° and 43°? Find each.
Given Find the length of to the nearest tenth. 1. Draw a diagram and label it. A C B 2. Draw a perpendicular from AB to C. 3. Write trig equations using.
The Law of Sines Advanced Geometry Trigonometry Lesson 4.
Pre calculus Problem of the Day Homework p. p odds, odds Find the area of a triangle with the given dimensions. r = 15 in s = 13 in t.
Finding area of triangles. Area of a triangle Law of sines Trig ratios are generally used to find unknown measures in right triangles, but they can also.
What you’ll learn Use the Law of Sines to solve oblique triangles. Use the Law of Sines to solve, if possible, the triangle or triangles in the ambiguous.
Copyright © 2014, 2010, 2007 Pearson Education, Inc.
EQ: What is the law of sines, and how can we use it to solve right triangles?
Do Now On your desk: - Pencil & Calculator -Today’s Handouts DO NOW!
What does this sign mean?
Advanced Geometry Trigonometry Lesson 5 The Law of Cosines.
Chapter 4 Laws of Sines and Cosines; Vectors 4.1 The Law of Sines 1
5.7 The Ambiguous Case for the Law of Sines
Objective: Use the law of sine. (SSA)
Trigonometry Ratios in Right Triangles
Copyright © 2014, 2010, 2007 Pearson Education, Inc.
Warm up sin cos −1 2 2 cos tan −1 − 3 tan −1 tan 2
Law of Sines What You will learn:
8-5 The Law of Sines Geometry.
Solving OBLIQUE triangles (ssa)
Lesson 7.7, For use with pages
Chapter 9 Right Triangle Trigonometry
Solve Right Triangles Mr. Funsch.
Copyright © 2014, 2010, 2007 Pearson Education, Inc.
Solving Right Triangles
Section 1.5 Law of Sines.
Trig Ratios C 5 2 A M 4. If C = 20º, then cos C is equal to:
Law of Sines and Cosines
Law of Sines Notes Over If ABC is a triangle with sides a, b, c, then according to the law of sines, or.
Law of Cosines.
Warm – up Find the sine, cosine and tangent of angle c.
Law of Cosines C a b A B c.
5.5 Law of Sines.
Hypotenuse hypotenuse opposite opposite adjacent adjacent.
Geometry Section 7.7.
Missing Lengths of Similar Figures Practice
8-6 Law of Sines The Law of Sines can be used to find missing parts of triangles that are not right triangles. Theorem 8.8: Let ∆ABC be any triangle with.
Accel Precalc Unit 8: Extended Trigonometry
Jeopardy Review: Right Triangle Trigonometry
Five-Minute Check (over Lesson 8–5) Mathematical Practices Then/Now
Chapter 2 Trigonometry 2.4 The Cosine Law
Presentation transcript:

The Law of Sines Day 1: Areas and AAS 12.4 The Law of Sines Day 1: Areas and AAS

Find the area of the triangle.

Find the area of the triangle.

Trig ratios only work with right triangles. This can be used to find the missing side of non right triangles!

Solve a triangle given 2 angles and one side Find all missing sides and angles

Solve a triangle given 2 angles and one side Find all missing sides and angles

Solve a triangle given 2 angles and one side Find all missing sides and angles

The Law of Sines Day 2: The Ambiguous case SSA 12.4 The Law of Sines Day 2: The Ambiguous case SSA

Solve a triangle given 2 sides and one angle

Solve a triangle given 2 sides and one angle Determine whether ΔDEF has no solution, one solution, or two solutions. Then solve the triangle. Round side lengths to the nearest tenth and angle measures to the nearest degree. In ΔDEF, E = 52°, e = 5, and f = 9

Solve a triangle given 2 sides and one angle Determine whether ΔXYZ has no solution, one solution, or two solutions. Then solve the triangle. Round side lengths to the nearest tenth and angle measures to the nearest degree. In ΔXYZ, X = 28°, z = 15, and x = 9.

Determine whether ΔFGH has no solution, one solution, or two solutions Determine whether ΔFGH has no solution, one solution, or two solutions. Then solve the triangle. Round side lengths to the nearest tenth and angle measures to the nearest degree. In ΔFGH, F = 36°, g = 9, and f = 6.

BASEBALL A baseball is hit between second and third bases and is caught at point B, as shown in the figure. How far away from second base was the ball caught?