Find the missing side of a right triangle without a calculator

The video tutorial explains how to solve for X in a triangle using trigonometric functions, specifically the sine function. It covers identifying triangle sides, applying the sine function, and simplifying the result. The tutorial emphasizes the importance of understanding the sine of 45 degrees and special right triangles, providing a step-by-step approach to solving the problem without a calculator.

What trigonometric function is used to solve for X in the given triangle problem?

• Sine

• Secant

• Tangent

• Cosine

What is the equation used to solve for X in terms of sine and the given angle?

• X = sin(45°) * 70

• X = sin(45°) / 70

• X = 70 / sin(45°)

• X = 70 * sin(45°)

Why is it important to remember the sine value of 45 degrees?

• It changes with different triangles

• It is not important

• It is always the same for 45 degrees

• It is used only in this problem

What is the sine value of a 45-degree angle in a right triangle?

• 1

• sqrt(2) / 2

• sqrt(3) / 2

• 1/2

What is the simplified form of 70 / sqrt(2) when rationalized?

• 70 / 2

• 35 * sqrt(2)

• 70 * sqrt(2)

• 35 / sqrt(2)