Download presentation

Presentation is loading. Please wait.

Published bySaige Farran Modified over 2 years ago

1
M May Trigonometry Measures of triangle Remember Angles of triangle add to 180˚ hypotenuse opposite adjacent Right-angled triangle

2
M May x A B C a b c Soh hypotenuse adjacent opposite A C B 5 12 13 x

3
M May sin 30˚ = sin 60˚ = sin 45˚ = sin 75˚ = sin 90˚ = sin 10˚ = 0.5 0.866 0.707 0.966 1 0.174 sin 150˚ = sin 120˚ = sin 135˚ = sin 80˚ = sin 100˚ = 0.5 0.866 0.707 0.985 sin x ˚ = 0.5 x ˚ = sin -1 (0.5) x ˚ = 30˚ sin x ˚ = 0.8 x ˚ = sin -1 (0.8) x ˚ = 53.1˚ sin x ˚ = 0.65 sin x ˚ = 0.12 sin x ˚ = 0.83 sin x ˚ = 0.21 sin x ˚ = 0.33 sin x ˚ = 0.47 sin x ˚ = 0.05 sin x ˚ = 0.72 x ˚ = sin -1 (0.65) x ˚ = sin -1 (0.12) x ˚ = sin -1 (0.83) x ˚ = sin -1 (0.21) x ˚ = sin -1 (0.33) x ˚ = sin -1 (0.47) x ˚ = sin -1 (0.05) x ˚ = sin -1 (0.72) x ˚ = 41˚ x ˚ = 7˚ x ˚ = 56˚ x ˚ = 12˚ x ˚ = 28˚ x ˚ = 3˚ x ˚ = 46˚

4
M May The angle a ramp makes with the horizontal must be 23 ± 3 degrees to be approved by the Council. If this ramp is 4m long and lifts up a height of 1.6 m, will it be approved? 1.6m 4m x S o h √√ sin x = 1.6 4 x = sin -1 () 1.6 4 x = 23.57818 x = 23.6˚ So since the angle lies between 20˚ and 26˚ the Council would approve the ramp.20˚ < 23.6˚ < 26˚

5
M May sin 40˚ = Use your calculator : sin 72˚ = sin 53˚ = sin 21˚ = sin 69˚ = sin 83˚ = sin 64˚ = sin 106˚ = sin 150˚ = sin 2˚ = sin x ˚ = 0.584 x ˚ = sin -1 (0.584) x ˚ = sin x ˚ = 0.792 x ˚ = sin -1 (0. ) x ˚ = sin x ˚ = 0.153 x ˚ = sin -1 ( x ˚ = sin x ˚ = 0.305 x ˚ = sin x ˚ = 0.866 x ˚ = sin x ˚ = 0.234 x ˚ = sin x ˚ = 0.618 x ˚ = sin x ˚ = 0.476 x ˚ =

6
M May sin 40˚ = Use your calculator : sin 72˚ = sin 53˚ = sin 21˚ = sin 69˚ = sin 83˚ = sin 64˚ = sin 106˚ = sin 150˚ = sin 2˚ = sin x ˚ = 0.584 x ˚ = sin -1 (0.584) x ˚ = sin x ˚ = 0.792 x ˚ = sin -1 (0. ) x ˚ = sin x ˚ = 0.153 x ˚ = sin -1 ( x ˚ = sin x ˚ = 0.305 x ˚ = sin x ˚ = 0.866 x ˚ = sin x ˚ = 0.234 x ˚ = sin x ˚ = 0.618 x ˚ = sin x ˚ = 0.476 x ˚ = 0.643 0.951 0.799 0.358 0.934 0.993 0.899 0.961 0.5 0.035 35.7˚ 792 52.4˚ 0.153) 8.8˚ sin -1 (0.305) 17.8˚ sin -1 (0.866) 60˚ sin -1 (0.234) 13.5˚ sin -1 (0.618) 38.2˚ sin -1 (0.476) 28.4˚

7
M May Remember The sine of an angle is found using S o h sin x = x o pposite h ypotenuse x 9 15 12 sin x = 9 15 x = sin -1 (9/15) x = 36.9˚

Similar presentations

OK

1 7.2 Right Triangle Trigonometry In this section, we will study the following topics: Evaluating trig functions of acute angles using right triangles.

1 7.2 Right Triangle Trigonometry In this section, we will study the following topics: Evaluating trig functions of acute angles using right triangles.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on appropriate climate responsive technologies for inclusive growth and sustainable development Ppt on uk economy Ppt on needle stick injury policy Download ppt on civil disobedience movement in united Ppt on change management process Simple ppt on wifi technology Ppt on food chains and webs Presentations open ppt on mac Ppt on boilers operations manager Ppt on complex numbers class 11th result