A right triangle has one leg measuring and a hypotenuse measuring . What is the length of the missing leg?
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
- OLD 1. Angles and the Trigonometric Functions Coming soon
- OLD 2. Trigonometric Functions graphs, Inverse Trigonometric Functions Coming soon
- OLD 3. Trigonometric Identities and Equations Coming soon
- OLD 4. Laws of Sines, Cosines and Vectors Coming soon
- OLD 5. Complex Numbers, Polar Coordinates and Parametric Equations Coming soon
- NEW (not used) 7. Laws of Sines, Cosines and Vectors Coming soon
- NEW (not used) 8. Vectors Coming soon
- NEW(not used) 9. Polar equations Coming soon
- NEW (not used) 11. Graphing Complex Numbers Coming soon
2. Trigonometric Functions on Right Triangles
Solving Right Triangles
Multiple Choice
Given a right triangle with one acute angle measuring , how many distinct triangles (up to similarity) can be formed?
A
B
C
D
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Verified step by step guidance1
Identify the given information: the triangle is a right triangle, and one of its acute angles measures 60 degrees.
Recall that in a right triangle, the sum of the two acute angles must be 90 degrees because the right angle is 90 degrees and the total sum of angles in any triangle is 180 degrees.
Calculate the other acute angle by subtracting the given angle from 90 degrees: \(90^\circ - 60^\circ = 30^\circ\).
Recognize that the triangle's angles are now fixed as 90°, 60°, and 30°, which means the triangle's shape is uniquely determined up to similarity (all triangles with these angles are similar).
Conclude that only one distinct triangle (up to similarity) can be formed with these angle measures.
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