Intro to Right Triangle Trigonometry

The longest side in a right angled triangle is always opposite the right angle. This side is called the ...

• Hypotenuse

• leg

• Right Angle

In relation to the angle θ, label the side marked a in this right-angled triangle.

• Hypotenuse

• Adjacent

• Opposite

In relation to the angle θ, label the side marked b in this right-angled triangle.

• Hypotenuse

• Adjacent

• Opposite

In relation to the angle θ, label the side marked c in this right-angled triangle.

• Hypotenuse

• Adjacent

• Opposite

In relation to the angle θ, label the side marked a in this right-angled triangle.

• Hypotenuse

• Adjacent

• Opposite

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

What is the ratio for Tangent?

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

Which side length is opposite of angle X?

• 20

• 29

• 21

• there is no opposite side

Which side length is adjacent to angle X?

• 20

• 29

• 21

• there is no adjacent side

Which side length is the hypotenuse?

• 12

• 16

• 20

• Joe Jonas