| 1 |
r<sub>1 </sub>= |
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| 2 |
In triangle ABC, if α = 90° then: |
- A.
- B.
- C.
- D. none of these
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| 3 |
The circum-radius R of a triangle is given by: |
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| 4 |
If triangle ABC, If ß = 90° then: |
- A.
- B.
- C.
- D. none of these
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| 5 |
In a triangle ABC if a<sup>2</sup> - b<sup>2</sup> + c<sup>2</sup> = ac then < ß = |
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| 6 |
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| 7 |
With usual notations for triangle R equals: |
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| 8 |
In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is: |
- A. 15°
- B. 30°
- C. 60°
- D. 45°
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| 9 |
If 2s = a + b + c, then in any triangle ABC: |
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| 10 |
In any triangle ABC, law of sines is: |
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