1 |
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- A. r<sub>1</sub>
- B. r<sub>2</sub>
- C. r<sub>3</sub>
- D. r
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2 |
In any triangle ABC, law of cosines is: |
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3 |
The in-radius r of a triangle is given by: |
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4 |
In 2s = a + b + , then in any triangle ABC: |
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5 |
A triangle which is not right angle triangle called ________ triangle: |
- A. acute
- B. obtuse
- C. right
- D. oblique
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6 |
The circum-radius R of a triangle is given by: |
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7 |
If 2s = a + b +c, then in any triangle ABC: |
- A.
- B.
- C.
- D. none of these
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8 |
With usual notations for triangle R equals: |
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9 |
If 2s = a + b + c, where a, b, c are the sides of a triangle ABC, then area of triangle ABC is given by: |
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10 |
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