Punjab 11th Class Math Chapter 12 Application of Trigonometry Mcqs Test Online

Math Chapter 12 Application of Trigonometry Mcqs Test Online Punjab 11th Class

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Question 1 of 20

Math

1. With usual notations r r₁ r₂ r₃ =

∆/abc

Abc/∆

∆

∆²

Question 1 of 20

Question 2 of 20

2. The circle which touches the sides of a triangle internally is called

In-Circle

Circum center

Centroid

e-Circle

Question 2 of 20

Question 3 of 20

3. In any triangle, with usual notations, Sin α/2 is equal to.

√(s + b)(s + c)/bc

√(s + b)(s - c)/bc

√(s - a)(s - c)/bc

√(s - b)(s - c)/bc

Question 3 of 20

Question 4 of 20

4. The In – radius r of a triangle is given by

∆/S – b

∆/S – D

∆/S – C

∆/S

Question 4 of 20

Question 5 of 20

5. The point Concurrency of the altitudes of a triangle is called

Ortho Center

Centroid

Circum center

In – Center

Question 5 of 20

Question 6 of 20

6. In triangle c2 = a2 + b2 – 2ab Cos r is called

Law of tangents

Law of Cosines

None of these

Law of Sine’s

Question 6 of 20

Question 7 of 20

7. The point of Concurrency of the right – bisectors of the sides of a triangle is called

Orthocenter

Centroid

In-Center

Circum center

Question 7 of 20

Question 8 of 20

8. In any triangle, with usual notations, Cos α/2 is equal to.

√s(s – a)/ab

√s(s – a)/ac

√s(s – c)/ab

√s(s – a)/ad

Question 8 of 20

Question 9 of 20

9. When two sides and its included angle is give, then area of triangle is given by

½ bc Sin C

½ ab Sin C

½ ac Sin B

All of these

Question 9 of 20

Question 10 of 20

10. In usual notations, r₁ =

∆/S

∆/S – c

∆/S – a

∆/S – b

Question 10 of 20

Question 11 of 20

11. The Circum – radius R of a triangle is given by

b/Sinβ

abc /4∆

c/Sinα

4 abc/∆

Question 11 of 20

Question 12 of 20

12. In any triangle, with usual notations, Sec α/2 is equal to.

√ac / s (s – b)

√ab / s (s – c)

√ac / (s – a)(s – c)

√bc / s (s – a)

Question 12 of 20

Question 13 of 20

13. In any triangle ABC, SinA+SinB/SinA – SinB =

2a + b/a – 2b

a + b/a – b

b + a/b – c

a + c/a – c

Question 13 of 20

Question 14 of 20

14. A triangle has _________ Important elements.

Question 14 of 20

Question 15 of 20

15. In any triangle, with usual notations, tan α/2 is equal to.

√(s – a)(s – b)/s(s – c)

√(s – b)(s – c)/s(s – a)

√(s – a)(s – c)/s(s – b)

√(s – b)(s – c)/s(s + a)

Question 15 of 20

Question 16 of 20

16. e – radius Corresponding to angle A is

∆/S – a

∆/S

∆/S – c

∆/S – b

Question 16 of 20

Question 17 of 20

17. The point of Concurrency of the medians of a triangle is called

Centroid

In – Center

Ortho Center

Circum center

Question 17 of 20

Question 18 of 20

18. The circle which passes through the vertices of a triangle is called

Circum center

e-Circle

In-Circle

None of these

Question 18 of 20

Question 19 of 20

19. A triangle which is not right angled is called.

Isosceles

Obtuse – angle

Oblique

Acute – angled

Question 19 of 20

Question 20 of 20

20. In any triangle ABC, law of Sine’s is

a/Sin A = b/Sin B = C/Sin C

A/Sin A = B/Sin B = C/Sin C

Cos A = b²+c²+a²/2bc

½ ac Sin B

Question 20 of 20

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