Trigonometry Concepts and Applications

What is trigonometry primarily used for?

• Calculating the area of circles.

• Finding missing sides and angles within triangles.

• Determining the volume of 3D shapes.

• Solving algebraic equations.

What are the two main categories of trigonometry discussed?

• Acute-Angle and Obtuse-Angle Trigonometry.

• Right-Angle and Non Right-Angle Trigonometry.

• Linear and Non-Linear Trigonometry.

• Basic and Advanced Trigonometry.

What are the three sides of a right-angled triangle that are used in trigonometry?

• Base, Height, and Diagonal.

• Short, Medium, and Long.

• Adjacent, Opposite, and Hypotenuse.

• Perpendicular, Parallel, and Transverse.

What are the three main trigonometric functions?

• Addition, Subtraction, Multiplication.

• Sine, Cosine, Tangent.

• Square, Cube, Root.

• Logarithm, Exponent, Factorial.

What is the correct expression to calculate the length of side AB in a right-angled triangle ABC, where angle C is 45 degrees and the hypotenuse AC is 12 units?

• 12 * cos(45)

• 12 / sin(45)

• 12 * sin(45)

• 12 / cos(45)

What is the approximate length of side AB in a right-angled triangle ABC, where angle C is 45 degrees and the hypotenuse AC is 12 units?

• 8.49

• 7.07

• 10.39

• 6.00

In a right-angled triangle, if the side opposite to angle x is 7 units and the side adjacent to angle x is 10 units, which trigonometric function should be used to find angle x?

• Sine

• Cosine

• Tangent

• Secant

What is the approximate size of angle x in a right-angled triangle if the side opposite to angle x is 7 units and the side adjacent to angle x is 10 units?

• 45.00 degrees

• 34.99 degrees

• 55.01 degrees

• 28.73 degrees

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Calculate the length of side CD in the given quadrilateral, correct to 3 significant figures.

• 16.5 cm

• 10.58 cm

• 13.2 cm

• 18.7 cm