Trigonometric Ratio

We can use SOH-CAH-TOA for...

• Any triangle ever
• Non-right triangles only
• Right Triangles only
• Never

What is the side across from the right angle called?

• Leg

• Pythagoras

• Hypotenuse

• Altitude

What does SOH stand for?

• sine = hypotenuse/opposite

• sine = opposite/adjacent

• sine = opposite/hypotenuse

• opposite = adjacent/tangent

What does CAH stand for?

• cosine = adjacent/hypotenuse

• cosine = hypotenuse/adjacent

• cosine = adjacent/opposite

• hypotenuse = adjacent/cosine

What does TOA stand for?

• tangent = opposite/hypotenuse

• adjacent = cosine/opposite

• tangent = adjacent/opposite

• tangent = opposite/adjacent

How do you know which side is OPPOSITE?

• it is next to the right angle

• it is opposite the right angle

• it is opposite/across from the reference angle

• it is the bottom leg of the triangle

What is sin x?

• 3/4

• 3/5

• 4/5

• 5/3

What is sin Z?

• 21/28

• 21/35

• 28/35

• 28/21

What is sin A?

• 16/34

• 16/30

• 30/34

• 30/16

What is cos A?

• 16/34

• 16/30

• 30/34

• 30/16