Download presentation

Presentation is loading. Please wait.

Published byRuth Rogers Modified over 2 years ago

1
Geometry B Bellwork 3) Using the inverse of tangent Find m N to the nearest degree. tan N = = m N = tan -1 (0.6) m N ≈ 31° N RX 30 18 30 0.6

2
9-2 Sine and Cosine Ratios

3
sin A =opposite side hypotenuse sin A = a c B c a C b A

4
cos A =adjacent side hypotenuse cos A = b c B c a C b A

5
EX. Write the sine and cosine ratio for A and B. sin A = cos A = sin B = cos B = A B C 8 17 15

6
Before starting this problem change your calculator mode to degrees EX 2. Find the value of w to the nearest tenth cos = 5.1≈ w w 32° 6 w 6 (6)cos 32°=w 1 CROSS MULTIPLY

7
Before starting this problem change your calculator mode to degrees Ex 3. Find the value of w to the nearest tenth sin = 7.1 ≈ w w 52° 9 w 9 (9)sin52°=w 1 CROSS MULTIPLY

8
Before starting this problem change your calculator mode to degrees OYO….Find the value of w to the nearest tenth sin = 8.6 ≈ w w 46° 12 46° w 12 (12)sin46°=w 1 CROSS MULTIPLY

9
Before starting this problem change your calculator mode to degrees EX 4. Find the value of w to the nearest tenth cos = w ≈ 10.7 w 62° 5 5 w cos62°(w)= 5 1 cos62 ° CROSS MULTIPLY

10
Before starting this problem change your calculator mode to degrees OYO. Find the value of w to the nearest tenth sin = w ≈10.3 w 43° 7 7 w sin43°(w)= 7 1 sin43°Sin 43° CROSS MULTIPLY

11
EX. 5 Using the inverse of tangent Find m X to the nearest degree. cos X = = m X = cos -1 ( ) m X ≈ 55° N RX 14 8 8 14 0.571428571

12
OYO….Using the inverse of tangent Find m X to the nearest degree. sin X = = m X = sin -1 ( ) m X ≈ 43° N RX 19 13 19 0.684210526

Similar presentations

Presentation is loading. Please wait....

OK

Set calculators to Degree mode.

Set calculators to Degree mode.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on hr practices in banking sector Download ppt on islands of india Convert doc file to ppt online reader Ppt on surface water temperatures Ppt on dispersal by water Ppt on electricity for class 10th exam Ppt on major physical features of india Themes free download ppt on pollution Ppt on switching network definition Ppt on javascript events onkeydown