Introduction to Trigonometry MCQ Questions Class 10 Maths Chapter 8
NCERT MCQ Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry. Introduction to Trigonometry MCQ Questions with Answers from Class 10 Maths.
Introduction to Trigonometry MCQ Questions Class 10 Maths Chapter 8
Introduction to Trigonometry Multiple Choice Questions with Answers Class 10 Maths Chapter 8 PDF is available.
1) The study of relationship between the sides and angles of a triangle is called
a) Trigonometry
b) Trigonometric functions
c) Trigonometric ratios
d) None
Ans: a) trigonometry
2) The ratios of sides of right triangle with respect to its acute angle is called as
a) Trigonometry
b) Trigonometric ratios of angles
c) Both a and b
d) None
Ans: b) trigonometric ratios of angles
3) The side of triangle opposite to right angle is called as
a) Adjacent side
b) Hypotenuse
c) Both a and b
d) None
Ans: b) hypotenuse
4) Opposite side/ hypotenuse represent
a) Cos A
b) Sin A
c) Tan A
d) Cot A
Ans: b) Sin
5) Adjacent side/ hypotenuse represents
a) Cos A
b) Sin A
c) Tan A
d) Cot A
Ans: a) Cos A
6) Opposite side / adjacent side represent
a) Tan A
b) Cot A
c) Sec A
d) Cosec A
Ans: a) Tan A
7) Hypotenuse/ opposite side represent
a) Cot A
b) Tan A
c) Cosec A
d) Sec A
Ans: c) Cosec A
8) Hypotenuse/ adjacent side represent
a) Cot A
b) Tan A
c) Cosec A
d) Sec A
Ans: d) Sec A
9) Adjacent side/ opposite side represent
a) Tan A
b) Cot A
c) Sec A
d) Cosec A
Ans: b) cot A
10) Tan A is given as
a) 1/cot A
b) Both a and c
c) SinA/cos A
d) Cos A/ SinA
Ans: b) both a and c
11) Cot A is given by
a) 1/tan A
b) CosA/ Sin A
c) Both a and b
d) None
Ans: c) both a and b
12) Sec A is given by
a) 1/sin A
b) 1/cos A
c) 1/ cotA
d) None
Ans: b) 1/cosA
13) Cosec A is given by
a) 1/sin A
b) 1/ cos A
c) 1/ tan A
d) 1/ cot A
Ans: a) 1/ sin A
14) The values of the trigonometric ratios of an angle do not vary with the lengths of the sides of the triangle if
a) The angle is different
b) If the angle is varying
c) If the angle remains same
d) None
Ans: c) if the angle remains same
15) The longest side in a right triangle is
a) Adjacent side
b) Hypotenuse
c) Both a and b
d) None
Ans: b) hypotenuse
16) As the hypotenuse is the longest side in a right triangle hence
a) Sin A has value less than 1
b) Sin A has value greater than 1
c) Both a and b
d) None
Ans: a) SinA has value less than 1
17) As the hypotenuse is the longest side in a right triangle hence
a) Cos A has value less than 1
b) Cos A has value greater than 1
c) Both a and b
d) None
Ans: a) Cos A has value less than 1
18) What is the value of sin(45)
a) 1
b) 1/√3
c) 1/√2
d) 0
Ans: c) 1/√2
19) What is the value of cos(45)
a) 1
b) 1/√3
c) 0
d) 1/√2
Ans: d) 1/√2
20) What is the value of tan(45)
a) 1/√2
b) √2
c) 1/√3
d) 1
Ans: d) 1
21) What is the value of cot (45)
a) 1/√3
b) 1/√2
c) √2
d) 1
Ans: d) 1
22) What is the value of cosec(45)
a) 1/√2
b) √2
c) 1/√3
d) √3
Ans: b) √2
23) What is the value of sec(45)
a) 1/√2
b) √2
c) 1
d) 0
Ans: b) √2
24) What is the value of sin(30) and sin(60)
a) ½, 3/2
b) ½, 1/√2
c) ½, √3/2
d) √3/2, ½
Ans: c) ½, √3/2
25) What is the value of cos(30) and cos(60)
a) √3/2, ½
b) √3, ½
c) ½, √3/2
d) ½, √3
Ans: a) √3/2, ½
- In case you have missed:- Previous Chapter MCQ Questions
26) What is the value of tan(30) and tan(60)
a) √3, 1/√3
b) 1/√3, √3
c) √2, 1/√2
d) 1/√2, √2
Ans: b) 1/√3, √3
27) What is the value of cot(30) and cot(60)
a) 1/√3, √3
b) √3, 1/√3
c) √2, ½
d) 1, 0
Ans: b) √3, 1/√3
28) What is the value of cosec(30) and cosec(60)
a) 2, 2/√3
b) ½, √3/2
c) 1,0
d) None
Ans: a) 2, 2/√3
29) What is the value of sec(30) and sec(60)
a) 2/√3, 2
b) ½, √3/2
c) √3, 1/√3
d) 1, 0
Ans: a) 2/√3, 2
30) What is the value of sin(0) and sin(90)
a) 1,0
b) 0,1
c) ½, 0
d) 1, ½
Ans: b) 0, 1
31) What is the value of cos(0) and cos(90)
a) 1, 0
b) 0, 1
c) -1,0
d) 0,-1
Ans: a) 1,0
32) What is the value of tan(0) and tan(90)
a) 0, 1
b) 1,0
c) 0, not defined
d) Not defined, 0
Ans: c) 0, not defined
33) What is the value of cot(0) and cot(90)
a) 0, not defined
b) Not defined, 0
c) 1,0
d) 0,1
Ans: b) not defined, 0
34) What is the value of sec(0) and sec(90)
a) Not defined, 1
b) 1, not defined
c) 1,0
d) 0,1
Ans: b) 1, not defined
35) What is the value of cosec(0) and cosec(90)
a) Not defined, 1
b) 1, not defined
c) 1,0
d) 0,1
Ans: a) not defined, 1
36) For angle 0° to 90° the value of sin changes from
a) 1 to 0
b) 0 to 1
c) Both a and b
d) None
Ans: b) 0 to 1
37) For angle 0° to 90° the value of cos changes from
a) 1 to 0
b) 0 to 1
c) Both a and b
d) None
Ans: a) 1 to 0
38) Sin(90-A)=
a) SinA
b) CosA
c) Both a and b
d) None
Ans: b) Cos A
39) Cos(90-A)=
a) CosA
b) SinA
c) Both a and b
d) None
Ans: b) SinA
40) Tan(90-A)=
a) TanA
b) CotA
c) Both a and b
d) None
Ans: b) CotA
41) Cot(90-A)=
a) TanA
b) CotA
c) Both a and b
d) None
Ans: a) TanA
42) What is the value of sec(90-A)=
a) SecA
b) CosecA
c) Both a and b
d) None
Ans: b) cosecA
43) The value of cosec(90-A)=
a) CosecA
b) SecA
c) Both a and b
d) None
Ans: b) secA
44) What is the value of tan(65)/cot(25) =
a) 1
b) 0
c) 2
d) -1
Ans: a) 1
45) In a triangle ABC, Sin[(B + C)/2] =
a) Sin(A/2)
b) Cos(A/2)
c) Both a and b
d) None
Ans: b)Cos(A/2)
46) Cos2A + sin2A=
a) 1
b) 0
c) -1
d) None
Ans: a) 1
47) 1 + tan2A =
a) Sec2A
b) Cosec2A
c) Both a and b
d) None
Ans: a) sec2A
48) 1 + cot 2A =
a) Sec2A
b) Cosec2A
c) Both a and b
d) None
Ans: b) Cosec2A
49) If tanA = 1/√3 then cotA =
a) 1/√3
b) √3
c) 1
d) 0
Ans: b) √3
50) 1- Sin2A =
a) Cos2A
b) Sec2A
c) Tan2A
d) Cot2A
Ans: a) Cos2A
- In case you have missed:- Next Chapter MCQ Questions