Posted by **Ma** on Friday, October 7, 2011 at 1:00pm.

if side x=15 and side y=8 what is sin of the angle.

- precalculus -
**drwls**, Friday, October 7, 2011 at 1:05pm
Is it a right triangle? Is side x the hypotenuse?

A figure needs to go with your question.

If the angle in question is measured from the x axis, and the angle is defined by the x axis and a line from the origin to (x,y), then the angle is arctan 8/15 and the sine is 8/sqrt(64 + 225)

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