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Correct Answer: B
Correct Answer: B
Method / Topic: Geometry and Trigonometry
The answer uses the formula that matches the figure and target quantity.
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Correct Answer: B
Method / Topic: Geometry and Trigonometry
For an acute angle in a right triangle, cosine is the ratio of the adjacent side to the hypotenuse. The adjacent side is 12 and the hypotenuse is 13, so cos θ = 12/13.
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- Fix the shape.
- Choose the matching formula.
- Substitute values with units.
In a right triangle, an acute angle θ has adjacent side 12 and hypotenuse 13. What is cos θ?
Explanation
Correct Answer: B
Method / Topic: Geometry and Trigonometry
The answer uses the formula that matches the figure and target quantity.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Geometry and Trigonometry
For an acute angle in a right triangle, cosine is the ratio of the adjacent side to the hypotenuse. The adjacent side is 12 and the hypotenuse is 13, so cos θ = 12/13.
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