Trigonometry

NZ Level 7 (NZC) Level 2 (NCEA)

Side lengths with Exact Values

Lesson

Find the length of side $h$`h`.

Consider the adjacent figure:

Solve for the unknown $\theta$

`θ`. Leave your answer in degrees.

Consider the adjacent figure:

Solve for the exact value of $x$

`x`.Solve for the exact value of $y$

`y`.

Consider the equilateral with side lengths of $2$2 units.

Find the perpendicular height $h$

`h`of the triangle.Determine the measure of angle $x$

`x`.Determine the exact value of $\sin60^\circ$

`s``i``n`60°.Determine the exact value of $\cos60^\circ$

`c``o``s`60°.Determine the exact value of $\tan60^\circ$

`t``a``n`60°.Determine the exact value of $\sin30^\circ$

`s``i``n`30°.Determine the exact value of $\cos30^\circ$

`c``o``s`30°.

Apply trigonometric relationships, including the sine and cosine rules, in two and three dimensions

Apply trigonometric relationships in solving problems