Trigonometry Concepts and Applications

The video tutorial demonstrates how to use trigonometry to find side lengths in right-angle triangles, focusing on practical applications such as calculating the height of a tower and the slant height of an isosceles triangle. It covers the use of trigonometric ratios (sine, cosine, tangent) and the importance of using a scientific calculator set to degrees.

What is the primary focus of using trigonometry in this tutorial?

• Calculating side lengths in right-angled triangles

• Finding angles in obtuse triangles

• Determining the area of scalene triangles

• Measuring distances in equilateral triangles

What tool does a surveyor use to measure the angle to the top of a tower?

• Compass

• Clinometer

• Ruler

• Protractor

Which trigonometric ratio is represented by 'SOH' in SOHCAHTOA?

• Tangent

• Secant

• Cosine

• Sine

In a right-angled triangle, what is the side opposite the right angle called?

• Adjacent

• Hypotenuse

• Opposite

• Base

What must you ensure about your calculator when solving trigonometric problems?

• It is in basic mode

• It is in scientific mode

• It is set to degrees

• It is set to radians

When using the sine ratio, which sides of the triangle are involved?

• Opposite and adjacent

• Base and height

• Adjacent and hypotenuse

• Opposite and hypotenuse

How do you determine the slant height in an isosceles triangle using trigonometry?

• By using the sine ratio

• By using the tangent ratio

• By using the cosine ratio

• By using the secant ratio