To find the cosine and sine of 180 degrees, we can use the unit circle, which is a circle with a radius of 1 centered at the origin of a coordinate plane.
At 180 degrees, the point on the unit circle is (-1, 0). This means:
- The cosine of 180 degrees is the x-coordinate of this point, which is -1.
- The sine of 180 degrees is the y-coordinate of this point, which is 0.
So, we have:
- Cosine of 180 degrees: -1
- Sine of 180 degrees: 0
Since both values are already at their nearest hundredth, we can just state:
- Cosine(180) = -1.00
- Sine(180) = 0.00
This gives us the final rounded answers for cosine and sine of 180 degrees.