What are the points on a unit circle by 45 degrees

The video tutorial explains how to find points on the unit circle, focusing on the 45-degree angle. It covers basic geometry concepts, the construction of a 45-45-90 triangle, and the use of the Pythagorean theorem to calculate coordinates. The tutorial also discusses reflections and quadrant points on the unit circle, providing a comprehensive understanding of these geometric principles.

What is the total degree measure of a full circle?

• 180 degrees

• 360 degrees

• 90 degrees

• 45 degrees

In a 45-45-90 triangle, what is the relationship between the two legs?

• The legs are unrelated

• One leg is twice the other

• One leg is half the other

• The legs are equal

How do you calculate the length of the legs in a 45-45-90 triangle if the hypotenuse is 1?

• 1/2

• 1

• sqrt(3)/2

• sqrt(2)/2

What happens to the X coordinate of a point in the second quadrant of the unit circle?

• It becomes positive

• It doubles

• It becomes negative

• It remains the same

What is the angle measure for a point on the unit circle that is 90 degrees more than 225 degrees?

• 315 degrees

• 135 degrees

• 45 degrees

• 405 degrees