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Online Tests
Mathematics FA Part 1 Chapter 12 Online Test MCQs With Answers
Question # 1
If triangle ABC, If ß = 90° then:
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none of these
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Question # 2
In a triangle ABC b = √3, c = 1, α = 30° then a = :
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2
1
3
-1
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Question # 3
If 2s = a + b +c, then in any triangle ABC:
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none of these
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Question # 4
A circle which touches one side of a triangle externally and the other two produces sides internally is known as:
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Question # 5
The in-radius r of a triangle is given by:
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Question # 6
In any triangle ABC, law of sines is:
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Question # 7
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Question # 8
r r
1
r
2
r
3
=
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abc
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Question # 9
If 2s = a + b + c, then in any triangle ABC:
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all of these
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Question # 10
r
2
=
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Question # 11
With usual notations for triangle R equals:
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Question # 12
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right angled
equilateral
isosceles
obtuse angled
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Question # 13
In any triangle ABC, law of tangents is:
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all of these
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Question # 14
In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is:
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15°
30°
60°
45°
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Question # 15
In a triangle ABC, (s - a)(s - b) = s(s - c), then the angle Γ =
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Question # 16
The circum-radius R of a triangle is given by:
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Question # 17
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Question # 18
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3:5:2
3:2:1
1:2:3
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Question # 19
The lengths of the sides of a triangle are proportional to the sines of the opposite angles to the sides. This is known as:
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The law of sines
The law of cosines
The law of tangents
The fundamental law
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Question # 20
In a right isoceles triangle, one acute angle is:
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30°
45°
60°
75°
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