Virginia SOL T.CT.1

What students need to be able to do

• Define a radian as a unit of angle measure and relate radian measure to arc length in a circle.
• Convert between degree and radian measures for angles, including negative and positive rotations.
• Find positive and negative coterminal angles for a given angle.
• Identify the quadrant or axis on which the terminal side of an angle lies.
• Draw a reference right triangle given a point on the terminal side of an angle in standard position.
• Draw a reference right triangle given a trigonometric function value of an angle.
• Determine the value of any trigonometric function (sine, cosine, tangent, cosecant, secant, cotangent) given a point on the terminal side of an angle in standard position.
• Given one trigonometric function value, determine the other five trigonometric function values.
• Calculate the length of an arc of a circle in radians.
• Calculate the area of a sector of a circle.