| 1 |
The circum-radius R of a triangle is given by: |
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| 2 |
If 2s = a + b + c, then in any triangle ABC: |
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| 3 |
A circle drawn inside a triangle and touching its sides is known as: |
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| 4 |
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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| 5 |
If the elevation of the sun is 30°, the length of the shadow cast by a tower of 150m height is: |
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| 6 |
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- A. 3:5:2
- B.
- C. 3:2:1
- D. 1:2:3
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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 |
In any triangle ABC, law of sines is: |
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| 9 |
A circle which touches one side of a triangle externally and the other two produces sides internally is known as: |
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| 10 |
In a right isoceles triangle, one acute angle is: |
- A. 30°
- B. 45°
- C. 60°
- D. 75°
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