+0

# How do you find the angles of a right triangle given the sides?

0
209
1

How do you find the angles of a right triangle given the sides?

Guest Feb 21, 2017
#1
+7096
+2

sin A = a/c

cos A = b/c

tan A = a/b

similarly:

sin B = b/c

cos B = a/c

tan B = b/a

You can remember this with " SOH CAH TOA. "

Sine of an angle = length of leg Opposite that angle divided by the length of the Hypotenuse

Sin = Opposite / Hypotenuse

Cosine of an angle = length of leg Adjacent that angle divided by the length of the Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent of an angle = length of led Opposite that angle / length of leg Adjacent that angle

Tangent = Opposite / Adjacent

Remember this only works on right triangles! And the "adjacent" leg cannot be the hypotenuse.

hectictar  Feb 22, 2017

### New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.