Find the sine of a 3 4 5 triangle

The video tutorial explains the concept of Pythagorean triples and their relation to right triangles. It emphasizes the importance of identifying right triangles when using trigonometry and the Pythagorean theorem. The tutorial further explores how to determine the smallest angle in a triangle, represented by theta, and calculates the sine of theta using the opposite side and hypotenuse. The example of a 3-4-5 triangle is used to illustrate these concepts, with a focus on understanding the relationship between the sides and angles of a right triangle.

What is a Pythagorean triple used to identify?

• An equilateral triangle

• A right triangle

• A scalene triangle

• An isosceles triangle

In a 3-4-5 triangle, which side is the hypotenuse?

• 3

• 4

• 5

• None of the above

Which angle is the smallest in a 3-4-5 triangle?

• The angle opposite the side of length 3

• The angle opposite the side of length 4

• All angles are equal

• The angle opposite the side of length 5

How do you calculate the sine of an angle in a right triangle?

• Adjacent over hypotenuse

• Opposite over adjacent

• Opposite over hypotenuse

• Hypotenuse over opposite

What is the sine of the smallest angle in a 3-4-5 triangle?

• 5/4

• 5/3

• 3/5

• 4/5