In a right angled triangle, cosθ=
Correct answer: B. Base / Hypotenuse
- A. Perpendicular / Hypotenuse
- B. Base / Hypotenuse
- C. Perpendicular / Base
- D. None of the above
Explanation
B is the correct option. In a right-angled triangle, the cosine of an angle θ is equal to the ratio of the length of the adjacent side (base) to the hypotenuse.
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Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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