Practice - Law of Sines & Law of Cosines
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Practice Questions
Test your understanding with targeted questions
Using the Law of Sines, if A = 40°, a = 8, and B = 60°, find b.
💡 Hint: Use the formula \\( \\frac{a}{\\sin(A)} = \\frac{b}{\\sin(B)} \\)
What does the Law of Cosines help us find?
💡 Hint: Think about situations involving two sides and an included angle!
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for the Law of Sines?
💡 Hint: Think of the sine ratio relating sides to angles.
The Law of Cosines can be used to find which of the following in a triangle?
💡 Hint: Consider which relationships it provides.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A triangle has sides a = 7, b = 12, and angle A = 40°. Use the Law of Cosines to find side c.
💡 Hint: Make sure to calculate cos(40°) first for an accurate result.
Using triangle ABC with a = 15, A = 60°, and c = 10, apply the Law of Sines to solve for angle B.
💡 Hint: You might need to find angle C first before solving for angle B.
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