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Angles of Depression/Elevation Law of Sines & Area of a A December 10 th, 2013 B December 11 th, 2013
Angles of Elevation/Depression
Area of a Triangle w/ Height
How to Label the Sides/Angles
The Area of a Triangle Formula
Law of Sines / The Sine Rule
So when do I use law of sines and when do I use trig ratios? Use basic trig ratios and equations for RIGHT TRIANGLES ONLY! Law of Sines can be used when not a right triangle and given:
Law of Sines / The Sine Rule
Homework A Day Edition 2 Pg. 404 #1-3, 5-6, 9 Pg. 413 #1 and #4 Pg. 417 #1 Pg. 418 #1-2 B Day Edition 1 Pg.329-330 #1-3, 5-6, 12 Pg. 338-339 #1 and #4 Pg. 341 #1 Pg. 343 #1-2
Objective - To use basic trigonometry to solve right triangles.
Merrill pg. 765, feet meters feet meters meters ° 16. 1° °
Today – Monday, March 11, 2013 Review for QUIZ QUIZ
Law of Cosines Herons Formula Determining b/w Sine & Cosine December 12 th, 2013 December 13 th, 2013.
D. Trigonometry Math 10: Foundations and Pre-Calculus FP10.4 Develop and apply the primary trigonometric ratios (sine, cosine, tangent) to solve problems.
The Sine Rule Draw any triangle. Measure sides and angles. Test this rule out! Angle A is opposite side a. Angle B is opposite side b. Angle C is opposite.
Geometry Notes Lesson 5.3C Trigonometry T.2.G.6 Use trigonometric ratios (sine, cosine, tangent) to determine lengths of sides and measures of angles in.
Today – Wednesday, March 6, 2013 Warm Up: Solving missing sides of right triangles or angles of right triangles Pass back Quizzes/ Test Corrections.
Unit 4: Trigonometry Minds On
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.
Finding Exact Values of Trig Ratios. Special Right Triangles
Today – Monday, March 11, 2013 Warm Up: Solving missing sides of right triangles or angles of right triangles Review Solutions to Angles of Elevation.
Today – Friday, March 15, 2013 Warm Up: Solving missing sides of right triangles or angles of right triangles Review Solutions to Angles of Elevation.
The sine rule When the triangles are not right-angled, we use the sine or cosine rule. Labelling triangle Angles are represented by upper cases and sides.
Geometry Warm-Up Solve for the missing side (Solve for x): Set up ratio, last step, plug into calculator 52° 32 x 33° 8x 13° x11.
Warm-Up Make all units the same then solve for the missing side 32 in.
Law of Cosines. We use the law of cosines and the law of sines because we need to be able to find missing sides and angles of triangles when they are.
TODAY IN ALGEBRA 2.0… Learning Target : You will solve triangles that have NO RIGHT ANGLE using LAW OF COSINES. Independent Practice.
The Sine Law (animated). Sine Law Let’s begin with the triangle ABC:
Geometry Notes Lesson 5.3A – Trigonometry T.2.G.6 Use trigonometric ratios (sine, cosine, tangent) to determine lengths of sides and measures of angles.
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