Further Trigonometry: The sine sule

Subject: Mathematics

Qualification: GCSE

Section: Shape and Space

Source: BBC Bitesize

HideShow resource information

The sine rule

(http://www.bbc.co.uk/schools/gcsebitesize/maths/images/figure_138abc.gif)

We can use the sine rule to find the size of an angle or length of a side.

The sine rule is:

(http://www.bbc.co.uk/schools/gcsebitesize/maths/images/furthertrigonometryhirev2_1.png)

or

(http://www.bbc.co.uk/schools/gcsebitesize/maths/images/furthertrigonometryhirev2.png) 

1 of 2

We can use the sine rule when we are given:

(http://www.bbc.co.uk/schools/gcsebitesize/maths/images/figure_138.gif)

  • Two sides and an angle oppsote to one of the two sides

 (http://www.bbc.co.uk/schools/gcsebitesize/maths/images/figure_139.gif)

  • One side and any two angles
2 of 2

Comments

||||||||||||||||||||||||||||||||||||||||

Wow this is really helpful. I like the way you copied and pasted it from bbc bitesize.

Similar Mathematics resources:

See all Mathematics resources »See all Trigonometry resources »