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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for sine?
💡 Hint: Think about the sides of a right triangle.
Question 2
Easy
What is the cosine of 0°?
💡 Hint: Recall the definition of cosine.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the value of sin 30°?
- 0
- 1/2
- √3/2
💡 Hint: Look at the standard angle values.
Question 2
True or False: Cosine is the ratio of the adjacent side to the hypotenuse.
- True
- False
💡 Hint: Recall the definition of cosine.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation