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Get Started Now- Intro Lesson13:03
- Lesson: 10:49
- Lesson: 22:39
- Lesson: 3a1:34
- Lesson: 3b0:52
- Lesson: 3c0:51
- Lesson: 4a1:06

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,

- IntroductionWhat are sine, cosine and tangent?
- 1.Determine each tangent ratio using a calculator

i) $\tan 70^\circ$

ii) $\tan-134^\circ$ - 2.Determine the angle to the nearest degree using a a calculator

i) $\tan \theta = 0.64$

ii) $\tan \theta = -1.45$ - 3.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

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

30.

Trigonometry

30.1

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

30.2

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

30.3

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

30.4

Combination of SohCahToa questions

30.5

Word problems relating ladder in trigonometry

30.6

Word problems relating guy wire in trigonometry

30.7

Other word problems relating angles in trigonometry

We have over 1110 practice questions in Algebra 1 for you to master.

Get Started Now30.1

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

30.2

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

30.3

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

30.4

Combination of SohCahToa questions

30.5

Word problems relating ladder in trigonometry

30.6

Word problems relating guy wire in trigonometry

30.7

Other word problems relating angles in trigonometry