| 1 |
If α, ß, Γ are the angles of a oblique triangle, then: |
- A. α = 90°
- B. ß = 90°
- C. Γ = 90°
- D. none of these
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| 2 |
The in-radius r of a triangle is given by: |
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| 3 |
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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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| 4 |
In any triangle ABC, law of cosines is: |
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| 5 |
In a right isoceles triangle, one acute angle is: |
- A. 30°
- B. 45°
- C. 60°
- D. 75°
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| 6 |
r<sub>1 </sub>= |
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| 7 |
If triangle ABC, If ß = 90° then: |
- A.
- B.
- C.
- D. none of these
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| 8 |
A circle drawn inside a triangle and touching its sides is known as: |
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| 9 |
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- A. 3:5:2
- B.
- C. 3:2:1
- D. 1:2:3
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| 10 |
r r<sub>1</sub> r<sub>2</sub> r<sub>3</sub> = |
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