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- Introduction to Trigonometry

Still Confused?

Try reviewing these fundamentals first.

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Try reviewing these fundamentals first.

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Get Started Now- Lesson: 113:03
- Lesson: 20:49
- Lesson: 32:39
- Lesson: 4a1:34
- Lesson: 4b0:52
- Lesson: 4c0:51
- Lesson: 5a1:06

Tangent ratio is yet another trigonometric ratio for right-angled triangles. Tangent ratio is the ratio of opposite side to adjacent side of a right triangle. Same as the sine and cosine ratios, tangent ratios can be used to calculate the angles and sides of right angle triangles.

Related concepts: Law of sines, Law of cosines, Find the exact value of trigonometric ratios, Unit circle,

- 1.What are sine, cosine and tangent?
- 2.Determine each tangent ratio using calculator

i) $\tan 70^\circ$

ii) $\tan-134^\circ$ - 3.Determine the angle to the nearest degree

i) $\tan \theta = 0.64$

ii) $\tan \theta = -1.45$ - 4.Determine the angles and sides using Tangenta)Find angle A and B:

b)Find the value of "x" using tangent

c)Find the value of "x" using tangent

- 5.Draw and label a right triangle to illustrate tangent ratio, then calculate the angle.a)$\tan \theta = {5 \over 9}$

29.

Introduction to Trigonometry

29.1

Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ )

29.2

Use cosine ratio to calculate angles and side (Cos = $\frac{a}{h}$ )

29.3

Use tangent ratio to calculate angles and side (Tan = $\frac{o}{a}$ )

29.4

Combination of SohCahToa questions

29.5

Solving expressions using 45-45-90 special right triangles

29.6

Solving expressions using 30-60-90 special right triangles

29.7

Word problems relating ladder in trigonometry

29.8

Word problems relating guy wire in trigonometry

29.9

Other word problems relating angles in trigonometry

We have over 1400 practice questions in NZ Year 11 Maths for you to master.

Get Started Now29.1

Use sine ratio to calculate angles and side (Sin = $\frac{o}{h}$ )

29.2

Use cosine ratio to calculate angles and side (Cos = $\frac{a}{h}$ )

29.3

Use tangent ratio to calculate angles and side (Tan = $\frac{o}{a}$ )

29.4

Combination of SohCahToa questions

29.5

Solving expressions using 45-45-90 special right triangles

29.6

Solving expressions using 30-60-90 special right triangles

29.7

Word problems relating ladder in trigonometry

29.8

Word problems relating guy wire in trigonometry

29.9

Other word problems relating angles in trigonometry