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11th Class ICS Mathematics Chapter 12 Test Online MCQs With Answers
Question # 1
In any triangle ABC, law of tangents is:
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all of these
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Question # 2
The in-radius r of a triangle is given by:
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Question # 3
A circle passing though the vertices of a triangle is known as:
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Question # 4
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 # 5
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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Question # 6
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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none
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Question # 7
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right angled
equilateral
isosceles
obtuse angled
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Question # 8
r
1
=
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Question # 9
A triangle which is not right angle triangle called ________ triangle:
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acute
obtuse
right
oblique
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Question # 10
r
3
=
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Question # 11
In a triangle ABC, (s - a)(s - b) = s(s - c), then the angle Γ =
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Question # 12
When two sides and included angle is given, then area of triangle is given by:
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all of these
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Question # 13
If 2s = a + b +c, then in any triangle ABC:
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none of these
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Question # 14
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Question # 15
If triangle ABC, If ß = 90° then:
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none of these
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Question # 16
If 2s = a + b + c, then in any triangle ABC:
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all of these
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Question # 17
A circle which touches one side of a triangle externally and the other two produces sides internally is known as:
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