Some Applications of Trigonometry What is the line drawn from the observer’s eye to the object being viewed called?(A) Line of sight(B) Height line(C) Base line(D) Angle lineAnswer: (A) What is the angle called when an observer raises their head to look at an object?(A) Angle of depression(B) Angle of elevation(C) Right angle(D) Radius angleAnswer: […]
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Introduction to Trigonometry The value of sin 30° is:(A) 1(B) 1/2(C) √3/2(D) 0Answer: (B) 1/2 The value of cos 0° is:(A) 1(B) 0(C) -1(D) √2Answer: (A) 1 The value of tan 45° is:(A) 0(B) 1(C) √3(D) 1/√3Answer: (B) 1 If sin A = 3/5, what is the value of cos A?(A) 4/5(B) 5/3(C) 1/2(D) 3/4Answer:
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Coordinate Geometry What is the x-coordinate of a point called?a) Ordinateb) Abscissac) Distanced) SlopeAnswer: b What is the distance of a point from the x-axis called?a) Slopeb) Radiusc) Ordinated) AbscissaAnswer: c The coordinates of a point on the x-axis are in which form?a) (x, 0)b) (0, y)c) (x, y)d) (y, x)Answer: a Which theorem
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Triangles All circles areA) CongruentB) SimilarC) BothD) NeitherAnswer: B All squares areA) CongruentB) SimilarC) BothD) NeitherAnswer: B All equilateral triangles areA) CongruentB) SimilarC) BothD) NeitherAnswer: C Two polygons of the same number of sides are similar if their corresponding angles areA) EqualB) UnequalC) CongruentD) ProportionalAnswer: A The corresponding sides of similar polygons areA) UnequalB)
Quadratic Equations What is the standard form of a quadratic equation?a) ax + b = 0b) ax² + bx + c = 0c) ax² = cd) ax³ + bx² + c = 0Answer: b In a quadratic equation, what must be true about the coefficient of x2x^2 (a)?a) a = 0b) a < 0c)
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Pair of Linear Equations in Two Variables A pair of linear equations in two variables can be represented as:a) ax2+by+c=0ax^2 + by + c = 0 b) ax+by+c=0ax + by + c = 0 c) ax3+by2+c=0ax^3 + by^2 + c = 0 d) None of theseAnswer: b The graphical representation of a pair of
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Polynomials A polynomial of degree 1 is called:a) Linear polynomialb) Quadratic polynomialc) Cubic polynomiald) None of theseAnswer: a A polynomial of degree 2 is called:a) Linear polynomialb) Quadratic polynomialc) Cubic polynomiald) None of theseAnswer: b A polynomial of degree 3 is called:a) Linear polynomialb) Quadratic polynomialc) Cubic polynomiald) None of theseAnswer: c The general
Real Numbers Euclid’s division algorithm helps in determining:a) LCMb) HCFc) Square rootd) Cube rootAnswer: b Which of the following is not a property of real numbers:a) Associativeb) Commutativec) Distributived) ImaginaryAnswer: d Fundamental Theorem of Arithmetic states:a) Every number is a rational numberb) Every composite number can be expressed uniquely as a product of primesc) Prime
Arithmetic Progressions What is the common difference of the AP: 3, 7, 11, 15, …?a) 2b) 3c) 4d) 5Answer: c Which term of the AP: 5, 10, 15, 20, … is 50?a) 5b) 6c) 7d) 10Answer: b Find the 10th term of the AP: 2, 4, 6, 8, …a) 18b) 20c) 22d) 24Answer: b
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Our Environment What is an ecosystem?a) A collection of only animals in a regionb) A system where living and non-living components interactc) A group of planetsd) A process of food productionAnswer: b) A system where living and non-living components interact Which of the following is a natural ecosystem?a) Aquariumb) Gardenc) Pondd) Crop fieldAnswer: c) Pond