Question

If cos(theta)=1/10 and 270 degrees 12 years ago

Answer 1

can u find sin theta when cos is given,
using sin^2 x+ cos^2 x =1
?

Answer 2

I used the pythagorean theoram to find sine, and I got 3 root 11, all over 10. Is that right?

Answer 3

This is the triangle I got using the Pythagorean theorem