Lesson 3 - Apply the SINE and COSINE Ratios
GPS Standards
MM2G2a Discover the relationship of the trigonometric ratios for similar triangles.
MM2G2b Explain the relationship between the trigonometric ratios of complementary angles.
MM2G2c Solve application problems using the trigonometric ratios.
MM2G2b Explain the relationship between the trigonometric ratios of complementary angles.
MM2G2c Solve application problems using the trigonometric ratios.
Essential Questions
What is the sine ratio of a right triangle?
What is the cosine ratio of a right triangle?
What is the cosine ratio of a right triangle?
Learning Objectives
§ Students will be able to find the sine ratio of a right triangle, given the lengths of the sides.
§ Students will be able to find the cosine ratio of a right triangle, given the lengths of the sides.
§ Students will be able to find the sine and cosine ratios for similar triangles by identifying complementary angles.
§ Students will be able to use the trigonometric ratios to find side lengths of right triangles, given the measure of an acute angle and the length of one side.
§ Students will be able to find the cosine ratio of a right triangle, given the lengths of the sides.
§ Students will be able to find the sine and cosine ratios for similar triangles by identifying complementary angles.
§ Students will be able to use the trigonometric ratios to find side lengths of right triangles, given the measure of an acute angle and the length of one side.
Vocabulary
Sine and Cosine:
The sine and cosine ratios are trigonometric ratios for acute angles that involve the lengths of a leg and the hypotenuse of a right triangle.
The sine and cosine ratios are trigonometric ratios for acute angles that involve the lengths of a leg and the hypotenuse of a right triangle.
Handouts
lesson3-notes.docx | |
File Size: | 228 kb |
File Type: | docx |
lesson3-practice.docx | |
File Size: | 76 kb |
File Type: | docx |
lessonplan3.docx | |
File Size: | 1964 kb |
File Type: | docx |