1 / 11

110 likes | 249 Vues

5.3 Apply the SINE and COSINE ratios. 5.1, 5.3 HW Quiz: Wednesday 5.1-5.3 Quiz: Friday Midterm: Oct. 6. Sine and Cosine Ratios. Are trigonometric ratios for acute angles that involve the lengths of a leg and the hypotenuse of a right triangle. Acute angles measure less than 90 o. B. C. A.

Télécharger la présentation
## 5.3 Apply the SINE and COSINE ratios

**An Image/Link below is provided (as is) to download presentation**
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.
Content is provided to you AS IS for your information and personal use only.
Download presentation by click this link.
While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

**5.3Apply the SINE and COSINE ratios**5.1, 5.3 HW Quiz: Wednesday5.1-5.3 Quiz: Friday Midterm: Oct. 6**Sine and Cosine Ratios**• Are trigonometric ratios for acute angles that involve the lengths of a leg and the hypotenuse of a right triangle. Acute angles measure less than 90o**B**C A Sine and Cosine Ratios • Let ΔABC be a right triangle with acute A. The sine of A and cosine of A (written as sinA and cosA) are defined as follows:**Sine and Cosine Ratios**OPPOSITE HYPOTENUSE ADJACENT HYPOTENUSE**Find SINE ratios**• Find sinX and sinY. Write each answer as a fraction and as a decimal rounded to four places (the ten-thousandth place)**Find COSINE ratios**• Find cosX and cosY. Write each answer as a fraction and as a decimal rounded to four places.**Extra Practice**• Find sinA and sinB.**Extra Practice**• Find cosA and cosB.**Find side lengths using SINE and COSINE**• Find x. Round to the nearest tenth.**Extra Practice**• Find the value of x. Round to the nearest tenth.**Homework**• P. 166-167 #1-12, 15-17, 21-26

More Related