1 |
When two sides and included angle is given, then area of triangle is given by: |
all of these
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2 |
In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is: |
15°
30°
60°
45°
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3 |
The lengths of the sides of a triangle are proportional to the sines of the opposite angles to the sides. This is known as: |
The law of sines
The law of cosines
The law of tangents
The fundamental law
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4 |
If 2s = a + b +c, then in any triangle ABC: |
none of these
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5 |
In 2s = a + b + , then in any triangle ABC: |
all of above
|
6 |
If 2s = a + b + c, then in any triangle ABC: |
all of these
|
7 |
|
right angled
equilateral
isosceles
obtuse angled
|
8 |
In any triangle ABC, law of tangents is: |
all of these
|
9 |
In a triangle ABC b = √3, c = 1, α = 30° then a = : |
2
1
3
-1
|
10 |
In a triangle ABC if a2 - b2 + c2 = ac then < ß = |
|
11 |
In any triangle ABC, law of cosines is: |
|
12 |
In any triangle ABC, law of sines is: |
|
13 |
In a triangle ABC, (s - a)(s - b) = s(s - c), then the angle Γ = |
|
14 |
In triangle ABC, If Γ = 90° then: |
b = c + a
|
15 |
If triangle ABC, If ß = 90° then: |
none of these
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16 |
In triangle ABC, if α = 90° then: |
none of these
|
17 |
If the elevation of the sun is 30°, the length of the shadow cast by a tower of 150m height is: |
none
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18 |
In a right isoceles triangle, one acute angle is: |
30°
45°
60°
75°
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19 |
If α, ß, Γ are the angles of a oblique triangle, then: |
α = 90°
ß = 90°
Γ = 90°
none of these
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20 |
|
3:5:2
3:2:1
1:2:3
|