Geometry and TrigonometryEasy–MediumSine from the sides of a right triangle
Geometry and Trigonometry practice question
In a right triangle, the leg opposite angle B has length 12 and the hypotenuse has length 13. What is sin B?
- A. 12/13Correct
- B. 5/13
- C. 12/5
- D. 13/12
Answer: A. 12/13
sin B = opposite / hypotenuse = 12/13.
Why the other answers are wrong
- B. 5/13
- 5/13 is cos B.
- C. 12/5
- 12/5 is tan B.
- D. 13/12
- 13/12 is the reciprocal of sin B.
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- Easy–Medium
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What is the midpoint of the segment joining the points (2, 3) and (8, 11)? - Easy–Medium
What is the measure, in degrees, of angle B? - Easy–Medium
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