Trigonometry;

What type of triangle in which one angle is a $90^o$ angle?

• right-angled triangle

• isosceles triangle

• scalene triangle

• acute triangle

The Pythagorean Theorem tells us that the relationship in every right triangle is

•  $a^2b^2=c^2$  

•  $a^2+b^2=c^2$  

•  $a^2\div b^2=c^2$  

 ___________  is the longest side of the right triangle.

• Opposite

• Hypotenuse

• Adjacent

• Trigonometry

Which side is opposite angle x?

• 1

• 2

• 3

Which side is adjacent angle x?

• 1

• 2

• 3

 $Sin\ \theta=\ ?$  

•  $\frac{Opposite}{Adjacent}$   

•  $\frac{Adjacent}{Opposite}$  

•  $\frac{Opposite}{Hypotenuse}$  

•  $\frac{Adjacent}{Hypotenuse}$  

 $Cos\ \theta\ =?$  

•  $\frac{Opposite}{Adjacent}$   

•  $\frac{Adjacent}{Opposite}$  

•  $\frac{Opposite}{Hypotenuse}$  

•  $\frac{Adjacent}{Hypotenuse}$  

 $Tan\ \theta\ =?$  

•  $\frac{Opposite}{Adjacent}$   

•  $\frac{Adjacent}{Opposite}$  

•  $\frac{Opposite}{Hypotenuse}$  

•  $\frac{Adjacent}{Hypotenuse}$  

What is the length of the hypotenuse?

• 16

• 30

• 34

What is the length of the side adjacent to  $\angle XZY$  ?

• 16

• 30

• 34