Geometry and TrigonometryHardTangent from a cosine
Geometry and Trigonometry practice question
In right triangle PQR, the right angle is at R, and cos P = 0.8. What is the value of tan P?
Answer: 3/4 or .75 or 0.75
cos P = 0.8 means the adjacent side is 4 for a hypotenuse of 5, so the opposite side is 3 and tan P = 3/4.
Common wrong answers
- If you answered 4/3
- 4/3 inverts the ratio.
- If you answered 0.6
- 0.6 is sin P.
- If you answered 0.8
- 0.8 is cos P.
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