The OnlineMathLearning website offers interactive sine and cosine worksheets. Worksheets include trigonometry and inverse trigonometry problems that require the use of calculators to determine sines and cosines; problems centering on just the laws of sines or cosines; and sine, cosine and tangent problems. The site checks students' answers after they are entered online, and then shows the correct solutions to the problems.
Quizlet offers sine and cosine problems in the form of flashcards, worksheets and quizzes. Flashcards can be printed out or used online with an audio component. The printable worksheets and answer sheets also have audio components that can help students with pronunciation of terms. The quizzes can be customized in length, with true/false, multiple choice, matching or written answers chosen for the format. Quizzes can be taken and graded online or they can be printed out with answer sheets.
Quia has sine and cosine problem games. One game requires players to determine sines and cosines of given angle degrees while another game tests sine and cosine knowledge when given radians. Answers are entered, scored and correct answers provided. SoftSchools has a trigonometry calculator that provides sines, cosines, tangents, cotangents, secants, cosecants and arcs for radians and degrees entered. This calculator can be used to check work and to play guessing games with degrees and radians.
MathIsFun's website offers sine and cosine problems and activities. Offerings include tutorials, solution explanations and problems about the sines and cosines of right angles, unit circles, quadrants and inverses as well as graphs of sine and cosine functions. Paper-based activities are also provided, such as an activity where sine functions can be calculated and graphed for all angles from 0 to 360 degrees. Other activities include a virtual unit circle with sine and cosine problems.