Special Right Triangles and Trig Ratios

Choose the correct value for \sin\ X.

Choose the correct value for \tan\ Z

What is the correct equation for this diagram?

Solve for x.

• 6.57 cm

• 7 cm

• 7.44 cm

• 26.33 cm

• 8.08 cm

Which Trig function should you use?

• Sine

• Cosine

• Tangent

• None of these

Evaluate without a calculator: sin 45°

• √2

• √2 /2

• 1/2

• √3/2

Evaluate without a calculator: tan 45°

• √2/2

• √3

• 1

• √3/3

Evaluate without a calculator: sec 60°

• 2

• √3

• 2√3 /3

• √2

Evaluate without a calculator: sin 30°

• √2

• √2 /2

• 1/2

• √3/2

Find cos30⁰

• √3

• √3/3

• √3/2

• 1/2