Download presentation

Presentation is loading. Please wait.

Published byIyanna Key Modified over 2 years ago

1
The Sine Law How to use sine law to find the angles and lengths of triangles.

2
ab A c B C = Sin ASin B ab The basics of Sine Law

3
5.9m (a) 7.8m (b) c B C A = Sin ASin B ab = Sin 36˚Sin B 5.97.8 36 ˚ =SinB x 5.9(Sin36˚)(7.8) =SinB(Sin36˚)(7.8) 5.9 =**
{
"@context": "http://schema.org",
"@type": "ImageObject",
"contentUrl": "http://images.slideplayer.com/14/4212770/slides/slide_3.jpg",
"name": "5.9m (a) 7.8m (b) c B C A = Sin ASin B ab = Sin 36˚Sin B 5.97.8 36 ˚ =SinB x 5.9(Sin36˚)(7.8) =SinB(Sin36˚)(7.8) 5.9 =
**

4
=

5
EX 2 θ θ E C B A 15.6m 36.0m = Sin BSin C bc = Sin θSin140˚ 15.636.0 Θ= sinˉ¹ (15.6)(sin140˚) 36.0 N Θ=16˚

6
Try this one out 115˚ 16m 49m A C B C

7
= Sin ASin115˚ 1649 A= Sinˉ¹ (sin115˚)(16) 49 A= 31˚ C=180-(31+115) C= 180 - 146 C=34˚ = Sin ASin C ac = Sin31˚Sin34˚ 16c = Sin31˚ 16 cSin34˚ x -20.95 = c

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google