The Educator's PLN

The personal learning network for educators

Trigonometry is a branch of mathematics. It is a central of mathematics. Trigonometry is all about the relation between the sides and angles of the triangles. The father of the trigonometry is “Hipparchus” introduce first trigonometry table. Trigonometry is the subject which is easy to understand if approach in a right manner. Go through the article to understand the basic concepts.

Right Angle Triangle:

Right angle triangle is a triangle in which one of its interior angle is 90 degree. The opposite side of the right angle triangle is hypothesis and the other two sides are adjacent and opposite.  Basic sin, cos and tan functions are as follows,

a)Sin θ = Opposite/Hypothesis
b)Cos θ = Adjacent/Hypothesis
c)Tan θ = Adjacent/Opposite

Pythagoras Theorem:

Pythagoras theorem is used to find the sides of the right angle. Pythagoras theorem is,
(Hypotenuse)^2= (Adjacent)^2 + (Opposite)^2

Triangle Identities:

Triangle identities are the function. There are some identities which are true for right angle triangles and some are true for all triangles. Understand more about trigonometry identities.

Sine and cosine rule:

Sine and cosine rule are very important in trigonometry. This is useful to solve triangle which is not a right angle.

Sine rule:

a/sin A = b/sin B = c/sin C

Cosine rule:

a^2 = b^2+c^2-2ab cos A
b^2 = a^2+c^2-2ab cos B
c^2 = a^2+b^2-2ab cos C

Here a, b and c are the side of the triangle.
And A, B and C are the angle of the triangle.

Important points:

• Understand the Trigonometry table.
• To understand trigonometry you can have an online math tutor chat.
• To know more about trigonometry basic take online trig help.

Online Math Tutor Chat

Views: 11911


You need to be a member of The Educator's PLN to add comments!

Join The Educator's PLN


Thomas Whitby created this Ning Network.

Latest Activity

Ella Curtiss added a discussion to the group Delicious Educators


I just learned about personal learning network's and am just creating mine! Does anyone have any advice for a first-time PLN creator? So far, I am really enjoying my PLN. I can already see the benefits!Thanks,EllaSee More
3 hours ago
Ella Curtiss joined Tara Benwell's group

Delicious Educators

Connecting Educators who have tasty resources to share. I'm TEFLTara. Who are you?
3 hours ago
Jennifer Broflowski posted blog posts
16 hours ago
Antonio Rosa liked Karen Dikson's blog post The Value of Online Degree and How to Choose a Program
Vivi Hamilou liked Brenda Savoie's blog post Top 10 Digital Platforms that Turn Teachers into Mentors
Danielle Dowdy liked Vivi Hamilou's blog post BRAGGING ABOUT SHARING
Danielle Dowdy updated their profile
Profile IconPaola Terán, Amy Krause, Michael Patrick Pittman and 30 more joined The Educator's PLN

Awards And Nominations

© 2017   Created by Thomas Whitby.   Powered by

Badges  |  Report an Issue  |  Terms of Service