Trigonometry Concepts and Functions

The video introduces the basics of trigonometry, focusing on right triangles and angles. It explains different types of angles, such as acute, right, and obtuse, and how they relate to right triangles. The video also covers the sides of right triangles, including the hypotenuse, adjacent, and opposite sides. It introduces trigonometric functions like sine, cosine, and tangent, explaining how they are derived from the ratios of triangle sides. The video concludes by encouraging viewers to explore more trigonometry topics.

What is the primary focus of trigonometry?

• Study of algebraic equations

• Study of right triangles

• Study of calculus

• Study of circles

How is an angle typically formed?

• By intersecting two lines

• By joining two points

• By taking two rays with a common point

• By drawing a circle

Which angle is exactly 90 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Reflex angle

Which angle type is less than 90 degrees?

• Right angle

• Obtuse angle

• Acute angle

• Straight angle

What is the measure of an obtuse angle?

• Less than 90 degrees

• Exactly 90 degrees

• Exactly 180 degrees

• More than 90 degrees

Which angle is marked with a small square in a right triangle?

• Acute angle

• Right angle

• Reflex angle

• Obtuse angle

What is a right triangle?

• A triangle with all angles less than 90 degrees

• A triangle with one angle more than 90 degrees

• A triangle with one angle exactly 90 degrees

• A triangle with all sides equal

Which side of a right triangle is always the longest?

• Adjacent side

• Hypotenuse

• Opposite side

• Base

What does the hypotenuse represent in a right triangle?

• The side opposite the right angle

• The shortest side

• The side opposite the smallest angle

• The side adjacent to the right angle

Which side is opposite to the angle in a right triangle?

• Opposite side

• Adjacent side

• Hypotenuse

• Base