Trigonometric Ratios and Triangle Properties

Trigonometric Ratios and Triangle Properties

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to determine the value of theta using special triangles and trigonometric functions without a calculator. It covers the properties of 30-60-90 and 45-45-90 triangles, introduces the SOHCAHTOA mnemonic for remembering trigonometric functions, and demonstrates calculations for cosecant, cosine, and sine. The tutorial also includes a step-by-step guide on multiplying fractions.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main objective of the problem discussed in the video?

To draw special triangles

To memorize trigonometric ratios

To determine the value of theta and simplify without a calculator

To calculate the value of theta using a calculator

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a characteristic of a 30-60-90 triangle?

The hypotenuse is equal to the shortest side

All sides are equal

The hypotenuse is twice the length of the shortest side

The angles are all 45 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the mnemonic 'SOHCAHTOA' help you remember?

The trigonometric ratios for sine, cosine, and tangent

The side lengths of a 45-45-90 triangle

The names of the special triangles

The angles in a triangle

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the tangent of a 30-degree angle calculated?

Adjacent over opposite

Adjacent over hypotenuse

Opposite over adjacent

Hypotenuse over opposite

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cosecant of a 60-degree angle?

Adjacent over opposite

Hypotenuse over opposite

Opposite over hypotenuse

Hypotenuse over adjacent

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which trigonometric ratio is used to calculate cosine?

Opposite over hypotenuse

Hypotenuse over opposite

Adjacent over hypotenuse

Opposite over adjacent

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sine of a 45-degree angle?

Square root of 2 over 2

1 over 2

Square root of 3 over 2

1 over square root of 2

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the top values in the simplification process?

3

4

2

1

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final result of the simplification process?

4 over 3

3 over 4

1 over 2

2 over 3