Sine and Cosine Ratios

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

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

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine
• cosine
• tangent
• inverse cosine

The ratio in a right triangle of opposite to adjacent side is _____

• sine
• cosine
• tangent
• inverse cosine

Choose the correct ratio.

• A
• B
• C
• D

Choose the correct ratio.

• sin(37)=x/14
• cos(37)=x/14
• tan(37)=x/14
• sin(37)=14/x

What would you use to solve for a?

• sin
• cos
• tan
• Pythagorean theorem

Find the length of side w.

• 21.4 cm
• 18.0 cm
• 36.5 cm
• 43.6 cm

What is the cosine of angle P?

• p/q
• q/r
• p/r
• r/q

Find x round to the nearest tenth.

• 46.1

• 4.9

• 16.4

• 26.9

• 6.99
• 6.33
• 13.59
• 7.83