Given a right triangle where = and = , what is the value of ?
Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles40m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
2. Trigonometric Functions on Right Triangles
Solving Right Triangles
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In a right triangle, one leg measures units, the other leg measures units, and the hypotenuse is labeled . What is the value of ?
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Verified step by step guidance1
Identify the sides of the right triangle: the two legs are given as 6 units and 8 units, and the hypotenuse is labeled as \(x\).
Recall the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse equals the sum of the squares of the legs: \(x^2 = a^2 + b^2\).
Substitute the known leg lengths into the Pythagorean theorem: \(x^2 = 6^2 + 8^2\).
Calculate the squares of the legs: \$6^2 = 36\( and \)8^2 = 64\(, so the equation becomes \)x^2 = 36 + 64$.
Add the values on the right side and then take the square root of both sides to solve for \(x\): \(x = \sqrt{36 + 64}\).
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