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Online Tests
Mathematics FA Part 1 Chapter 12 Online Test MCQs With Answers
Question # 1
When two sides and included angle is given, then area of triangle is given by:
Choose an answer
all of these
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Question # 2
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r
1
r
2
r
3
r
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Question # 3
r r
1
r
2
r
3
=
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abc
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Question # 4
In triangle ABC, If Γ = 90° then:
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b = c + a
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Question # 5
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3:5:2
3:2:1
1:2:3
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Question # 6
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Question # 7
A circle drawn inside a triangle and touching its sides is known as:
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Question # 8
A circle passing though the vertices of a triangle is known as:
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Question # 9
r
3
=
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Question # 10
The circum-radius R of a triangle is given by:
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Question # 11
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Question # 12
r
2
=
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Question # 13
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Question # 14
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 # 15
The in-radius r of a triangle is given by:
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Question # 16
In any triangle ABC, law of sines is:
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Question # 17
If 2s = a + b + c, then in any triangle ABC:
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all of these
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Question # 18
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 # 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
If 2s = a + b +c, then in any triangle ABC:
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none of these
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