Radian Measure and the Unit Circle

Find the value of $\tan 45º$ using sine and cosine values from the unit circle.

What is the unit circle definition of the trigonometric functions?

Convert the angle$\frac{\mathrm{\pi }}{5}$ radian into degrees using the radians to degrees formula.

The angle measuring $270°$​ when expressed in centesimal system is:

The angle measuring $\frac{{\mathrm{\pi }}^c}{4}$​ when expressed in centesimal system is:

Cotyledons are also called-