Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How do you find the exact values $sin (\frac{π}{4})$ $sin (pi/4)$ using the special triangles?

1 Answer

Alan P. · Jim H

Aug 4, 2015

$sin (\frac{π}{4}) = \frac{1}{\sqrt{2}} = \frac{\sqrt{2}}{2}$ $sin(pi/4) = 1/sqrt2 = sqrt2/2$

Explanation:

$\frac{π}{4}$ $pi/4$ is one of the "special triangle" angles:
enter image source here
By definition
$XXXX$ $color(white)("XXXX")$ $sin = \frac{opposite}{hypotenuse}$ $sin = ("opposite")/("hypotenuse")$

Related questions

See all questions in Special Right Triangles

Impact of this question

11061 views around the world

You can reuse this answer
Creative Commons License