7 - Trigonometry
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Practice Questions
Test your understanding with targeted questions
What is the formula for sine?
💡 Hint: Think about the sides of a right triangle.
What is the cosine of 0°?
💡 Hint: Recall the definition of cosine.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the value of sin 30°?
💡 Hint: Look at the standard angle values.
True or False: Cosine is the ratio of the adjacent side to the hypotenuse.
💡 Hint: Recall the definition of cosine.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A ladder is leaning against a wall. The foot of the ladder is 6 feet from the wall, and the ladder is 10 feet long. Calculate the angle θ where the ladder touches the wall.
💡 Hint: Use the cosine ratio and apply the inverse cosine.
A ship is sailing at an angle of 30° to the shore. If the distance from the shore is 100 meters, find the height of the ship above the sea level.
💡 Hint: Visualize the situation as a right triangle with the height as the opposite side.
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