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Course Content
Algebra 1
0/14
Algebra 2
0/16
Trigonometry 1
0/18
Coordinate Geometry of the Line
0/14
Probability 1
0/14
Geometry 1
0/6
Differential Calculus
0/10
Trigonometry 2
0/10
Sequences & Series
0/12
Statistics 1
0/9
Coordinate Geometry of the Circle
0/14
Algebra 3
0/16
Complex Numbers
0/12
Geometry 2
0/4
Integration
0/8
Differential Calculus Applications
0/8
Financial Maths
0/8
Length, Area & Volume
0/6
Probability 2
0/9
Functions
0/15
Statistics 2
0/4
Inferential Statistics
0/6
Digital Lessons

Knowledge Check Quiz

#### EXAMS.IE

##### Trigonometric Ratios

Hint

Use the acronym SOHCAHTOA.

1 / 5

Which of the following is the definition of sine of an angle?

Hint

Use the acronym SOHCAHTOA.

2 / 5

Which of the following is the definition of cosine of an angle?

Hint

Use the acronym SOHCAHTOA.

3 / 5

Which of the following is the definition of tangent of an angle?

Hint

Sine of an angle tells us the ratios of side lengths.

4 / 5

If $$\sin\alpha=\dfrac{3}{4}$$, then two of the sides of that triangle have length $$3$$ units and $$4$$ units.

Hint

The hypotenuse is always the longest side of a right-angled triangle.

5 / 5

The maximum possible value of $$\sin\alpha$$ is $$1$$.